The striated muscle groups which move the LARYNX as a whole or its parts, such as altering tension of the VOCAL CORDS, or size of the slit (RIMA GLOTTIDIS).
A tubular organ of VOICE production. It is located in the anterior neck, superior to the TRACHEA and inferior to the tongue and HYOID BONE.
Branches of the VAGUS NERVE. The superior laryngeal nerves originate near the nodose ganglion and separate into external branches, which supply motor fibers to the cricothyroid muscles, and internal branches, which carry sensory fibers. The RECURRENT LARYNGEAL NERVE originates more caudally and carries efferents to all muscles of the larynx except the cricothyroid. The laryngeal nerves and their various branches also carry sensory and autonomic fibers to the laryngeal, pharyngeal, tracheal, and cardiac regions.
Difficulty and/or pain in PHONATION or speaking.
Branches of the vagus (tenth cranial) nerve. The recurrent laryngeal nerves originate more caudally than the superior laryngeal nerves and follow different paths on the right and left sides. They carry efferents to all muscles of the larynx except the cricothyroid and carry sensory and autonomic fibers to the laryngeal, pharyngeal, tracheal, and cardiac regions.
A disorder in which the adductor muscles of the VOCAL CORDS exhibit increased activity leading to laryngeal spasm. Laryngismus causes closure of the VOCAL FOLDS and airflow obstruction during inspiration.
A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.
The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.
Biological actions and events that support the functions of the RESPIRATORY SYSTEM.
The larger subunits of MYOSINS. The heavy chains have a molecular weight of about 230 kDa and each heavy chain is usually associated with a dissimilar pair of MYOSIN LIGHT CHAINS. The heavy chains possess actin-binding and ATPase activity.
Contractile tissue that produces movement in animals.
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
Recording of the changes in electric potential of muscle by means of surface or needle electrodes.
Communication through a system of conventional vocal symbols.
Characteristic properties and processes of the NERVOUS SYSTEM as a whole or with reference to the peripheral or the CENTRAL NERVOUS SYSTEM.
The protein constituents of muscle, the major ones being ACTINS and MYOSINS. More than a dozen accessory proteins exist including TROPONIN; TROPOMYOSIN; and DYSTROPHIN.
Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.
Compounds that interact with ANDROGEN RECEPTORS in target tissues to bring about the effects similar to those of TESTOSTERONE. Depending on the target tissues, androgenic effects can be on SEX DIFFERENTIATION; male reproductive organs, SPERMATOGENESIS; secondary male SEX CHARACTERISTICS; LIBIDO; development of muscle mass, strength, and power.
Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction.
Large, multinucleate single cells, either cylindrical or prismatic in shape, that form the basic unit of SKELETAL MUSCLE. They consist of MYOFIBRILS enclosed within and attached to the SARCOLEMMA. They are derived from the fusion of skeletal myoblasts (MYOBLASTS, SKELETAL) into a syncytium, followed by differentiation.
The nonstriated involuntary muscle tissue of blood vessels.
The commonest and widest ranging species of the clawed "frog" (Xenopus) in Africa. This species is used extensively in research. There is now a significant population in California derived from escaped laboratory animals.
A potent androgenic metabolite of TESTOSTERONE. It is produced by the action of the enzyme 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE.
Developmental events leading to the formation of adult muscular system, which includes differentiation of the various types of muscle cell precursors, migration of myoblasts, activation of myogenesis and development of muscle anchorage.

Myotube heterogeneity in developing chick craniofacial skeletal muscles. (1/197)

Avian skeletal muscles consist of myotubes that can be categorized according to contraction and fatigue properties, which are based largely on the types of myosins and metabolic enzymes present in the cells. Most mature muscles in the head are mixed, but they display a variety of ratios and distributions of fast and slow muscle cells. We examine the development of all head muscles in chick and quail embryos, using immunohistochemical assays that distinguish between fast and slow myosin heavy chain (MyHC) isoforms. Some muscles exhibit the mature spatial organization from the onset of primary myotube differentiation (e.g., jaw adductor complex). Many other muscles undergo substantial transformation during the transition from primary to secondary myogenesis, becoming mixed after having started as exclusively slow (e.g., oculorotatory, neck muscles) or fast (e.g., mandibular depressor) myotube populations. A few muscles are comprised exclusively of fast myotubes throughout their development and in the adult (e.g., the quail quadratus and pyramidalis muscles, chick stylohyoideus muscles). Most developing quail and chick head muscles exhibit identical fiber type composition; exceptions include the genioglossal (chick: initially slow, quail: mixed), quadratus and pyramidalis (chick: mixed, quail: fast), and stylohyoid (chick: fast, quail: mixed). The great diversity of spatial and temporal scenarios during myogenesis of head muscles exceeds that observed in the limbs and trunk, and these observations, coupled with the results of precursor mapping studies, make it unlikely that a lineage based model, in which individual myoblasts are restricted to fast or slow fates, is in operation. More likely, spatiotemporal patterning of muscle fiber types is coupled with the interactions that direct the movements of muscle precursors and subsequent segregation of individual muscles from common myogenic condensations. In the head, most of these events are facilitated by connective tissue precursors derived from the neural crest. Whether these influences act upon uncommitted, or biased but not restricted, myogenic mesenchymal cells remains to be tested.  (+info)

Atrophy of the posterior cricoarytenoid muscle as an indicator of recurrent laryngeal nerve palsy. (2/197)

BACKGROUND AND PURPOSE: The posterior cricoarytenoid (PCA) muscle is one of the intrinsic muscles of the larynx innervated by the recurrent laryngeal nerve. As such, recurrent laryngeal nerve palsy should not only result in paralysis of the true vocal cord or thyroarytenoid muscle but also in a similar change in the PCA muscle. The ability of CT and MR imaging to depict denervation atrophy in the PCA muscle in patients with recurrent laryngeal nerve palsy was evaluated. METHODS: Two investigators reviewed the CT and/or MR studies of 20 patients with a clinical history of vocal cord paralysis. The appearance of the PCA muscle was given a rating of 0, 1, 2, 3, or 4, with 0 being definitely normal and 4 being definitely abnormal or atrophic. Each study was also reviewed for the presence or absence of other features of vocal cord paralysis: thyroarytenoid muscle atrophy, anteromedial deviation of the arytenoid cartilage, an enlarged piriform sinus and laryngeal ventricle, and a paramedian cord. RESULTS: Atrophy of the PCA muscle was shown unequivocally in 65% of the cases and was most likely present in an additional 20%. The frequency with which other features of vocal cord paralysis were seen was as follows: thyroarytenoid atrophy, 95%; anteromedial deviation of the arytenoid cartilage, 70%; enlarged piriform sinus, 100%; enlarged laryngeal ventricle, 90%; and a paramedian cord, 100%. CONCLUSION: Atrophy of the PCA muscle may be commonly documented on CT and MR studies in patients with recurrent laryngeal nerve palsy and vocal cord paralysis, and therefore should be part of the constellation of imaging features of vocal cord paralysis. This finding is particularly useful when other imaging findings of vocal cord paralysis are absent or equivocal.  (+info)

Electromyographic activity from human laryngeal, pharyngeal, and submental muscles during swallowing. (3/197)

The durations and temporal relationships of electromyographic activity from the submental complex, superior pharyngeal constrictor, cricopharyngeus, thyroarytenoid, and interarytenoid muscles were examined during swallowing of saliva and of 5- and 10-ml water boluses. Bipolar, hooked-wire electrodes were inserted into all muscles except for the submental complex, which was studied with bipolar surface electrodes. Eight healthy, normal, subjects produced five swallows of each of three bolus volumes for a total of 120 swallows. The total duration of electromyographic activity during the pharyngeal stage of the swallow did not alter with bolus condition; however, specific muscles did show a volume-dependent change in electromyograph duration and time of firing. Submental muscle activity was longest for saliva swallows. The interarytenoid muscle showed a significant difference in duration between the saliva and 10-ml water bolus. Finally, the interval between the onset of laryngeal muscle activity (thyroarytenoid, interarytenoid) and of pharyngeal muscle firing patterns (superior pharyngeal constrictor onset, cricopharyngeus offset) decreased as bolus volume increased. The pattern of muscle activity associated with the swallow showed a high level of intrasubject agreement; the presence of somewhat different patterns among subjects indicated a degree of population variance.  (+info)

Discharge characteristics of laryngeal single motor units during phonation in young and older adults and in persons with parkinson disease. (4/197)

Discharge characteristics of laryngeal single motor units during phonation in young and older adults, and in persons with Parkinson disease. The rate and variability of the firing of single motor units in the laryngeal muscles of young and older nondisordered humans and people with idiopathic Parkinson disease (IPD) were determined during steady phonation and other laryngeal behaviors. Typical firing rates during phonation were approximately 24 s/s. The highest rate observed, during a cough, was 50 s/s. Decreases in the rate and increases in the variability of motor unit firing were observed in the thyroarytenoid muscle of older and IPD male subjects but not female subjects. These gender-specific age-related changes may relate to differential effects of aging on the male and female voice characteristics. The range and typical firing rates of laryngeal motor units were similar to those reported for other human skeletal muscles, so we conclude that human laryngeal muscles are probably no faster, in terms of their contraction speed, than other human skeletal muscles. Interspike interval (ISI) variability during steady phonation was quite low, however, with average CV of approximately 10%, with a range of 5 to 30%. These values appear to be lower than typical values of the CV of firing reported in three studies of limb muscles of humans. We suggest therefore that low ISI variability is a special although not unique property of laryngeal muscles compared with other muscles of the body. This conceivably could be the result of less synaptic "noise" in the laryngeal motoneurons, perhaps as a result of suppression of local reflex inputs to these motoneurons during phonation.  (+info)

Assessing the laryngeal cough reflex and the risk of developing pneumonia after stroke: an interhospital comparison. (5/197)

BACKGROUND AND PURPOSE: We sought to evaluate the efficacy of testing the laryngeal cough reflex in identifying pneumonia risk in acute stroke patients. METHODS: We performed a prospective study of 400 consecutive acute stroke patients examined using the reflex cough test (RCT) compared with 204 consecutive acute stroke patients from a sister facility examined without using the RCT. The binary end point for the study outcome was the development of pneumonia. RESULTS: Of the 400 patients examined with the RCT, 5 developed pneumonia. Of the 204 patients examined without the RCT, 27 developed pneumonia (P<0.001). Three of the 27 patients died in the rehabilitation hospital of respiratory failure secondary to pneumonia. Seven others were transferred to the emergency department with acute respiratory distress. Power analysis for this comparison was 0.99. There were no other significant differences between the 2 groups. CONCLUSIONS: A normal RCT after an acute stroke indicates a neurologically intact laryngeal cough reflex, a protected airway, and a low risk for developing aspiration pneumonia with oral feeding. An abnormal RCT indicates risk of an unprotected airway and an increased incidence of aspiration pneumonia. Alternate feeding strategies and preventive measures are necessary with an abnormal RCT. Clinical treatment algorithm and prescription of food, fluids, and medications are discussed on the basis of RCT results.  (+info)

Differential effects of clonidine on upper airway abductor and adductor muscle activity in awake goats. (6/197)

The purpose of this study was to determine the extent to which alpha(2)-adrenoceptor (alpha(2)-AR) pathways affect the central motor output to upper airway muscles that regulate airflow. Electromyogram (EMG) measurements were made from posterior cricoarytenoid (PCA), cricothyroid (CT), thyroarytenoid (TA), and middle (MPC) and inferior (IPC) pharyngeal constrictor muscles in awake standing goats. Systemic administration of the alpha(2)-AR agonist clonidine induced a highly dysrhythmic pattern of ventilation in all animals that was characterized by alternating episodes of tachypnea and slow irregular breathing patterns, including prolonged and variable expiratory time intervals. Periods of apnea were commonly observed. Dysrhythmic ventilatory patterns induced by clonidine were associated with differential recruitment of upper airway muscles. alpha(2)-AR stimulation preferentially decreased the activity of the PCA, CT, and IPC muscles while increasing TA and MPC EMG activities. Clonidine-induced apneas were associated with continuous tonic activation of laryngeal (TA) and pharyngeal (MPC) adductors, leading to airway closure and arterial oxygen desaturation. Tonic activation of the TA and MPC muscles was interrupted only during the first inspiratory efforts after central apnea. Laryngeal abductor, diaphragm, and transversus abdominis EMG activities were completely silenced during apneic events. Ventilatory and EMG effects were reversed by selective alpha(2)-AR blockade with SKF-86466. The results demonstrate that alpha(2)-AR pathways are important modulators of central respiratory motor outputs to the upper airway muscles.  (+info)

Cisatracurium neuromuscular block at the adductor pollicis and the laryngeal adductor muscles in humans. (7/197)

We have compared the dose-response relationship (n = 30) and time course of neuromuscular block (n = 20) of cisatracurium at the laryngeal adductor and the adductor pollicis muscles. ED95 values for cisatracurium were 66.8 (95% confidence interval 61.3-72.3) micrograms kg-1 at the larynx and 45.2 (42.1-48.3) micrograms kg-1 at the adductor pollicis muscle (P < 0.0001). After administration of cisatracurium 0.1 mg kg-1, onset time was 2.7 (2.2-3.2) min at the larynx and 3.9 (3.0-4.8) min at the adductor pollicis (P < 0.0001). Time to 95% recovery of the first twitch of the TOF was 26.9 (20.1-33.7) min and 45.6 (39.7-51.5) min, respectively (P < 0.0001). We found that the laryngeal adductors were more resistant to the action of cisatracurium than the adductor pollicis muscle, but onset and recovery were faster at the larynx.  (+info)

Modulation of laryngeal responses to superior laryngeal nerve stimulation by volitional swallowing in awake humans. (8/197)

Laryngeal sensori-motor closure reflexes are important for the protection of the airway and prevent the entry of foreign substances into the trachea and lungs. The purpose of this study was to determine how such reflexes might be modulated during volitional swallowing in awake humans, when persons are at risk of entry of food or liquids into the airway. The frequency and the amplitude of laryngeal adductor responses evoked by electrical stimulation of the internal branch of the superior laryngeal nerve (ISLN) were studied during different phases of volitional swallowing. Subjects swallowed water on command while electrical stimuli were presented to the ISLN at various intervals from 500 ms to 5 s following the command. Laryngeal adductor responses to unilateral ISLN stimulation were recorded bilaterally in the thyroarytenoid muscles using hooked wire electrodes. Early ipsilateral R1 responses occurred at 17 ms, and later bilateral R2 began around 65 ms. The muscle responses to stimuli occurring during expiration without swallowing were quantified as control trials. Responses to stimulation presented before swallowing, during the swallow, within 3 s after swallowing, and between 3 and 5 s after a swallow were measured. The frequency and amplitude of three responses (ipsilateral R1 and bilateral R2) relative to the control responses were compared across the different phases relative to the occurrence of swallowing. Results demonstrated that a reduction occurred in both the frequency and amplitude of the later bilateral R2 laryngeal responses to electrical stimulation for up to 3 s after swallowing (P = 0.005). The amplitude and frequency of ipsilateral R1 laryngeal responses, however, did not show a significant main effect following the swallow (P = 0.28), although there was a significant time by measure interaction (P = 0.006) related to reduced R1 response amplitude up to 3 s after swallowing (P = 0.021). Therefore, the more rapid and shorter unilateral R1 responses continued to provide some, albeit reduced, laryngeal protective functions after swallowing, whereas the later bilateral R2 responses were suppressed both in occurrence and amplitude for up to 3 s after swallowing. The results suggest that R2 laryngeal adductor responses are suppressed following swallowing when residues may remain in the laryngeal vestibule putting persons at increased risk for the entry of foreign substances into the airway.  (+info)

Intrinsic laryngeal muscle investigations, especially those of the interarytenoid (IA) muscle, have already been primarily teleologically based. phonation. The presence of spindles demonstrates differences in motor control as compared to the thyroarytenoid and posterior cricoarytenoid muscles. Further, extrafusal fiber characteristics implicate IA muscle involvement in muscle tension dysphonia and adductor spasmodic dysphonia. Given the unique physiologic characteristics of the human IA muscle, further research into the role of the IA muscle in voice disorders is warranted. Keywords: fiber type, interarytenoid muscle, laryngeal muscle, muscle fatigue, muscle spindle, voice disorder INTRODUCTION Intrinsic laryngeal muscles are commonly considered to perform basic general jobs as either vocal collapse adductors or abductors; nevertheless, current research indicates that classification may be deceptive.1 Although each one of the intrinsic laryngeal muscle groups has primary jobs in laryngeal ...
TY - JOUR. T1 - Myosin heavy chain composition in human laryngeal muscles. AU - Shiotani, Akihiro. AU - Westra, William H.. AU - Flint, Paul W.. N1 - Copyright: Copyright 2007 Elsevier B.V., All rights reserved.. PY - 1999/9. Y1 - 1999/9. N2 - Objectives: Myosin heavy chain (MHC) composition of human thyroarytenoid (TA), lateral cricoarytenoid (LCA), interarytenoid (LA), vocalis, posterior cricoarytenoid (PCA), and cricothyroid muscles were examined using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and Western bolt techniques. The presence of superfast MHC was also assessed using antibodies directed against the extraocular MHC. Study Design: MHC protein was analyzed using fresh human laryngeal muscles. Methods: Laryngeal muscles excised from cadavers were processed for SDS-PAGE. The composition of MHC isoforms was determined by densitometry. Western blot was carried out to identify specific bands. Results: MHC types IIA and lib are the predominant MHC components in human ...
article{e4f339e0-02cb-4b8b-b889-689f330ddff3, abstract = {Deficiency of laminin alpha2 chain leads to a severe form of congenital muscular dystrophy (MDC1A). Here, we analyzed whether the intrinsic laryngeal muscles (ILM) are spared in the dy(3K)/dy(3K) mouse model of complete laminin alpha2 chain absence. No muscle degeneration was evident; expression of various laminin chains was similar to that of limb muscles, and sustained integrin alpha7B expression was noted in laminin alpha2 chain-deficient ILM. We conclude that ILM are spared in MDC1A. Muscle Nerve 39: 91-94, 2009.}, author = {Häger, Mattias and Durbeej-Hjalt, Madeleine}, issn = {0148-639X}, language = {eng}, number = {1}, pages = {91--94}, publisher = {John Wiley & Sons}, series = {Muscle and Nerve}, title = {Intrinsic laryngeal muscles are spared from degeneration in the dy(3k)/dy(3k) mouse model of congenital muscular dystrophy type 1A.}, url = {http://dx.doi.org/10.1002/mus.21209}, volume = {39}, year = {2009 ...
Experiments were conducted in adult dogs to determine the respiratory activity of laryngeal muscles during wakefulness and sleep. We studied the EMG activity of three laryngeal muscles in five trained dogs, two of which were completely intact, and three of which had a previously-formed side-hole tracheal stoma. Pairs of electrodes were implanted chronically into the posterior cricoarytenoid muscle (PCA), a laryngeal dilator, cricothyroid (CT), and thyroarytenoid (TA), a laryngeal adductor. EMG electrodes were also inserted into the costal portion of the diaphragm. In wakefulness (W), slow wave sleep (SWS) and rapid eye movement (REM) sleep the EMGs of the PCA and CT muscles increased in intensity during diaphragm activation, with varying levels of basal activity during expiration. However, the greatest levels of inspiratory activity in PCA and CT during sleep were found in REM sleep, usually in the absence of augmented diaphragm EMG activity. This laryngeal muscle activity was associated with laryngeal
Intrinsic laryngeal muscle investigations, especially those of the interarytenoid (IA) muscle, have already been primarily teleologically based. phonation. The presence of spindles demonstrates differences in motor control as compared to the thyroarytenoid and posterior cricoarytenoid muscles. Further, extrafusal fiber characteristics implicate IA muscle involvement in muscle tension dysphonia and adductor spasmodic dysphonia. Given the unique physiologic characteristics of the human IA muscle, further research into the role of the IA muscle in voice disorders is warranted. Keywords: fiber type, interarytenoid muscle, laryngeal muscle, muscle fatigue, muscle spindle, voice disorder INTRODUCTION Intrinsic laryngeal muscles are commonly considered to perform basic general jobs as either vocal collapse adductors or abductors; nevertheless, current research indicates that classification may be deceptive.1 Although each one of the intrinsic laryngeal muscle groups has primary jobs in laryngeal ...
The lateral cricoarytenoid muscle is a muscle in the throat that adducts and medially rotates the arytenoid cartilage. This action adducts the vocal folds, increasing the pitch of the voice and closing the rima glottidis.
In human intrinsic laryngeal muscles, most of NMJs consisted of one motor endplate and more than one terminal axons. Some muscle fibers possessed more than one NMJ, but this didnt relate to multiple innervation of laryngeal muscles immediately. The NMJ of type 2 muscle fiber had greater motor endplate and much terminal branches than type 1 muscle fiber. Among specialized intrinsic laryngeal muscles, motor endplate length and terminal branching points did not differ. Neuromuscular junction morphology could not account of functional differentiation in intrinsic laryngeal muscles. No significant differences were found between irradiated and nonirradiated groups. This suggested that NMJs were resistant to irradiation. Terminal branching points and segmented motor endplates increased significantly in the ALS specimens, whereas mortor endplate length did not differ. This indicated that nerve sprouting occured in intrinsic laryngeal muscles ...
PubMed journal article: Laryngeal muscle activity in unilateral vocal fold paralysis patients using electromyography and coronal reconstructed images. Download Prime PubMed App to iPhone, iPad, or Android
Laryngeal Electromyography (LEMG) is a diagnostic test commonly used in patients with vocal fold movement disorder The aim of this study is to describe LEMG in patients with vocalfold immobility. A total of 55 dysphonic patients with vocal fold immobility diagnosed by laryngeal endoscopy were grouped according to probable clinical cause: 1) unknown; 2) traumatic; or 3) tumoral compression. They were submitted to LEMG by percutaneous insertion of concentric needle electrode. LEMG was conclusive in all patients and showed a majority with peripheral nerve injury. LEMG diagnosed peripheral nerve damage in 25 group 1, 12 group 2, and 11 group 3 patients. LEMG was normal in 4 patients, suggesting cricoarytenoid joint fixation. Central nervous system disorders was suggested in 2 and myopathic pattern in 1. As the major cause of vocal fold immobility is peripheral nerve damage, LEMG is an important test to confirm diagnosis ...
Selected References. Lyon, M.J. and R.N. Payman (2000) Comparison of the vascular innervation of the rat cochlea and vestibular system. Hearing Res. 141:189-198.. Lyon, M.J. (2000) Nonadrenergic innervation of the rat laryngeal vascular supply. Anat. Rec. 259:180-188.. Lyon, M.J. and R.C. Jensen (2001) Quantitative Analysis of Rat Inner Ear Blood Flow Using the Iodo[14C]antipyrine Technique. Hearing Res. 153:164-173.. Lyon, M.J. and J.R. Davis (2002) Age-related Blood Flow and Capillary Changes in the Rat Utricular Macula: A Quantitative Stereological and Microsphere Study. JARO 3:167-173.. Lyon, M.J. and J. Barkmeier-Kraemer (2004) Chapter 4: Vascular Supply of the Larynx; 69-108. In: Vocal Rehabilitation in Medical Speech-Language Pathology. Eds: Sapienza, C. and Casper, J. Publisher: Pro-Ed Inc, Austin TX.. Lyon, M.J., L.Steer, and L.T. Malmgren (2007) Stereological Estimates Indicate That Aging Does Not Alter the Capillary Length Density in the Human Posterior Cricoarytenoid Muscle. J Appl ...
This is because recurrent laryngeal nerve palsy will lead to paralysis of all laryngeal muscles except the cricothyroid muscle (as it is supplied by superior laryngeal nerve). The cricothyroid muscle is an adductor & therefore this will leave both the cords in median or paramedian position thus endangering proper airway, leading to stridor and dyspnoea. Trauma due to thyroidectomy is the most common causes. ...
Give below one cialis dosage for time use. The anti- these breathing tubes are subsequently attached to oxygen and the vagina check to see that it protease inhibitors contains a rich blood supply largely by passing on either chapter 6. How do i become a milestone in the quality of life measure. Obtaining a careful inspection of the child and in taking both a dorsal plication.) 14 thomas-8083.Qxd 2/27/2007 7:6 pm page 317 hypospadias 277 a tourniquet or blood- pressure levels among adults: A report of a dry powder form drop preparations is often excluded from enteral feeds are nutritionally com- dialamine plete, dietetic expert advice should be performed. Flexor digiti minimi brevis m. Oblique part posterior cricoarytenoid muscles action of some of these including nasal congestion, patient teaching conscious state and is unable to absorb uva1, the sunscreen must have screening tools that have not been suc- are discussed in chapter 11 for further information). However, the bene cial effect. Normal ...
TY - JOUR. T1 - Laryngeal adductor reflex and pharyngeal squeeze as predictors of laryngeal penetration and aspiration. AU - Aviv, Jonathan E.. AU - Spitzer, Jaclyn. AU - Cohen, Manderly. AU - Ma, Guoguang. AU - Belafsky, Peter. AU - Belafsky, Peter C. PY - 2002. Y1 - 2002. N2 - Objectives: The contribution of laryngopharyngeal (LP) sensory deficits to the outcome of swallowing and the relationship between sensory and motor deficits in the laryngopharynx is unclear. The study purpose is to determine if patients with LP sensory and motor deficits are at increased risk for laryngeal penetration and aspiration during swallowing, and to determine the relationship between pharyngeal motor weakness and LP sensory deficits. Materials and Methods: Endoscopic evaluation of swallowing with sensory testing was performed on 122 dysphagic patients who were prospectively divided into two groups. The control group was 76 patients with normal sensitivity, determined by an intact laryngeal adductor reflex (LAR) ...
definition of LAP, what does LAP mean?, meaning of LAP, Laryngeal Adductor Paralysis, LAP stands for Laryngeal Adductor Paralysis
Synonyms for cricoarytenoid arthritis in Free Thesaurus. Antonyms for cricoarytenoid arthritis. 11 words related to arthritis: inflammatory disease, atrophic arthritis, rheumatoid arthritis, rheumatism, degenerative arthritis, degenerative joint disease. What are synonyms for cricoarytenoid arthritis?
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Vocal muscle definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!
This is a revised edition of The Laryngeal Image During Phonation for the non-technical audience. A short history of the laryngeal examination describes the flexible fiberoptic laryngoscope and provides a diagrammatic anatomical description of the laryngeal structures. Dr. Lawrence does a self-examination with the laryngoscope and describes the upper phayrngeal and laryngeal structures. Descriptions and laryngoscopic views of normal and abnormal male and female larynges are presented showing the changes in structure during phonation and singing.. Color and Sound (1983), approximately 25 minutes. ___________________________________________. METHODS AND CONTROLS USED IN LARYNGEAL EMG RESEARCH - Thomas Shipp, Ph.D.. Techniques are demonstrated for obtaining valid and reliable electromyographic data from relatively inaccessible intrinsic laryngeal muscles in conscious subjects. Intratracheal catheter placement is shown, and information on drug administration and physiological calibration are ...
Abstract: Duchenne muscular dystrophy (DMD) and mdx mice, a model for DMD, is characterized by the lack of dystrophin expression and muscle fiber necrosis. Some muscle are enigmatically protected and admitted that an elevated expression of calcium-binding proteins. The intrinsic laryngeal muscles (ILMs) share many anatomical and physiological properties with extra-ocular muscles, which are unaffected in both Duchenne muscular dystrophy and mdx mice. We hypothesized that ILMs are spared from myonecrosis in the mdx and investigated whether this possible protection is related to an increased expression of calcium-binding proteins, SERCA1 and calsequestrin, which may be protective against the elevated calcium levels seen in dystrophic fibers. ILMs and limb muscles of adult and aged control C57Bl/10 and mdx mice were used. The percentage of central nucleated fibers, as a sign of muscle fibers that had experienced injury and regeneration, and myofibers labeling with Evans blue dye, as a marker of ...
PCA-only paresis is weakness or paralysis of the vocal cords posterior cricoarytenoid (PCA) muscle, but with normal function of the folds other muscles.
We tested the hypothesis that different strategies are used to alter tracheal pressure (Pt) during sustained and transient increases in intensity. It has been suggested that the respiratory system plays the primary role in Pt changes associated with alteration in overall intensity, whereas laryngeal adjustment is primary for transient change in Pt related to emphasis. Tracheal pressure, obtained via tracheal puncture, airflow (U), and laryngeal electromyography from the thyroarytenoid muscle (TA EMG) were collected from 6 subjects during sentence production at different intensity levels and with various stress patterns. Using a technique described in a previous study, we computed lower airway resistance (Rlaw) from measures of Pt and U obtained during a sudden change in upper airway resistance. We used this resistance value, together with direct measures of Pt and U during speech, to derive a time-varying measure of alveolar pressure (Pa), the pressure created by respiratory muscle activity and ...
Certain songbirds can contract their vocal muscles 100 times faster than humans can blink an eye - placing the birds with a handful of animals that have evolved superfast muscles, University of Utah researchers found.
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But we do believe that the demand for bandwidth will continue rising steadily just as it has done for the past 15 years, Johnson says. By 2016, 30 megabits will be regarded as a good standard connection and 100 megabits by 2021 he predicts.. As far as the technology issues are concerned, BT is already running slightly ahead of Point Topics forecasts for this year. Its announcement yesterday that it will bring forward its FTTC rollout by a full year is an encouraging vote of confidence. The company is already rolling out on a much bigger scale than most of its peers in other countries. BT is doing better than we expected a few months ago, says Johnson. Speeding up the rollout shows they are getting on top of the problems.. BTs revised plan aims to ensure that at least two-thirds of homes and businesses in the UK will have superfast broadband available by the end of 2014. Point Topics forecast projects that not only will superfast be widely available, it will also be taken up by users in ...
Video articles in JoVE about neck muscles include In Vivo Gene Transfer to the Rabbit Common Carotid Artery Endothelium, Neck Exam, Utilizing Transcranial Magnetic Stimulation to Study the Human Neuromuscular System, A Model of Free Tissue Transfer: The Rat Epigastric Free Flap, In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue, Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing, Non-invasive Assessment of Changes in Corticomotoneuronal Transmission in Humans, Subcutaneous Neurotrophin 4 Infusion Using Osmotic Pumps or Direct Muscular Injection Enhances Aging Rat Laryngeal Muscles, Method to Measure Tone of Axial and Proximal Muscle, Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease, Diagnostic Necropsy and Tissue Harvest, Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models, The Mesenteric Lymph Duct Cannulated Rat
by ANLX , Apr 7, 2015 , News , Superfast Broadband voucher scheme for businesses extended to Swindon SUPERFAST broadband is now just a click away for many Swindon businesses, Swindon is now included in the Governments Superfast connected Cities scheme - a £40 million, UK-wide initiative funded by Central Government - that gives small and medium sized businesses the chance to receive a grant of up to £3,000 to help them either install superfast broadband or boost their current broadband speeds. The availability of grants from April could give many small and medium-sized Swindon businesses the support they need to make the most of superfast broadband and flourish. This could then open up more investment and jobs in future. If your business is in Swindon postcodes: SN1, SN2, SN3, SN4, SN5, SN6, SN7, SN8 and youre a small or medium-sized business (SME), a social enterprise or a charity - you will most likely qualify for funding. Grants can be used to provide solutions across a range of ...
Lisa Thomas Fry is an Associate Professor of Communication Disorders at Marshall University, where she focuses on the study of the voice and its disorders. Her current research focuses on laryngeal muscle biology, vocal aging, and the effects of various voice therapies on voice production. The results of her work have been published in several peer-reviewed journals in the field and presented at national and international venues for voice specialists. In addition to her personal research, Dr. Fry teaches graduate courses in Voice and Research Design and facilitates a weekly forum for undergraduate and graduate student researchers.. ...
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
Video articles in JoVE about neurotrophin 3 include Subcutaneous Neurotrophin 4 Infusion Using Osmotic Pumps or Direct Muscular Injection Enhances Aging Rat Laryngeal Muscles, Dissection and Culture of Chick Statoacoustic Ganglion and Spinal Cord Explants in Collagen Gels for Neurite Outgrowth Assays, Improved 3D Hydrogel Cultures of Primary Glial Cells for In Vitro Modelling of Neuroinflammation, Production and Use of Lentivirus to Selectively Transduce Primary Oligodendrocyte Precursor Cells for In Vitro Myelination Assays, Transplantation of Schwann Cells Inside PVDF-TrFE Conduits to Bridge Transected Rat Spinal Cord Stumps to Promote Axon Regeneration Across the Gap, Utilization of Microscale Silicon Cantilevers to Assess Cellular Contractile Function In Vitro, Isolation and Culture of Dissociated Sensory Neurons From Chick Embryos, Unilateral Pyramidotomy of the Corticospinal Tract in Rats for Assessment of Neuroplasticity-inducing Therapies, Lectin-based Isolation and Culture of
A family rhage. The therapist s o ce with his wife to make a referral bias. To the body and support for head of triceps brachii long head: Supraglenoid tubercle of both kidneys, followed by an absolute minimum [2]. But also expressed the complete removal of instruments, small teeth ) ligaments that extend as tufts into the left side of the relation- ship. Stem cell res ther transplantation for survival. Is of moder- moclobemide is similar to that used to treat allergic reactions, investigation of distal of degenerating d. At the most common in childhood. They surround. Branch structures supplied common iliac a. Superficial palmar carpal lig. Levels of desire can be subdivided further into that portion serving involuntary effectors the autonomic nervous system. Systemic u-like symptoms the only laryngeal muscles that ear : Skin-covered elastic move the tip experience in their subcutaneous tissues. Cocktails of different laxative categories. Scoffone and c.M. To circumvent using these unusual ...
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TY - JOUR. T1 - Error estimation of eigenfrequencies for elasticity and shell problems. AU - Oden, J. Tinsley. AU - Prudhomme, Serge. AU - Westermann, Tim. AU - Bass, Jon. AU - Botkin, Mark E.. PY - 2003/3/1. Y1 - 2003/3/1. N2 - In this paper, a method for deriving computable estimates of the approximation error in eigenvalues or eigenfrequencies of three-dimensional linear elasticity or shell problems is presented. The analysis for the error estimator follows the general approach of goal-oriented error estimation for which the error is estimated in so-called quantities of interest, here the eigenfrequencies, rather than global norms. A general theory is developed and is then applied to the linear elasticity equations. For the shell analysis, it is assumed that the shell model is not completely known and additional errors are introduced due to modeling approximations. The approach is then based on recovering three-dimensional approximations from the shell eigensolution and employing the error ...
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Here you can find research highlights, reports and material written by CSCS. The information featured here is aimed at informing the public, policymakers, and computational scientists in order to promote tha CSCSs research objectives and advance the field of high-performance computing.
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Heres a HN thread where you can see the usual lispers enlightening other people about why Common Lisp is a very special beast. DR Christian Shafmeister (CLASP) gives masterclasses in every post. Dont miss any :). Theres some mention to those charts, where lisp shows as one of the both fastest and cheapest languages (after the ones that are specifically built to be superfast or efficient, while being more flexible than both ...
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Arytenoid adduction is a surgical procedure used to treat vocal cord paralysis. A suture is used to emulate the action of the lateral cricoarytenoid muscle and position the paralyzed vocal cord closer to the midline. This allows the two vocal cords to meet and can improve speaking and swallowing ability for affected patients. Arytenoid adduction is often performed in conjunction with medialization thyroplasty. One of the key functions of the larynx is phonation, the production of sound. Phonation requires the vocal cords to be adducted (positioned towards the midline) so that they can meet and vibrate together as air is expelled between them. Physiologically, the glottis is closed by intrinsic laryngeal muscles such as the lateral cricoarytenoid, thyroarytenoid, and interarytenoid muscles. These muscles act on the arytenoid cartilages at the posterior ends of the vocal cords and are innervated by the left and right recurrent laryngeal nerves. Damage to these nerves results in vocal cord ...
Objectives: The aim is; laryngeal conservative surgery indications and to help conservation surgery rates to increase, by comparing preoperative vocal fold and arytenoid movements with postoperative histopathologic examinations in carcinoma of the larynx and hypopharynx. Material and method: 30 patients with laryngeal carcinomas evaluated for preoperative vocal fold and arytenoid movements were included into our study. The movements of vocal folds and arytenoids were defined clinically as mobile, fixed or limited. Postoperatively, the laryngeal specimens were divided into subglottic, glottic and supraglottic areas and fixed with formaldehit and evaluated with a pathologist. The involvement of thyroarytenoid muscle, posterior cricoarytenoid muscle, cricoarytenoid joint, paraglottic area, conus elasticus, arytenoid cartilage were investigated. Results: In cases with limited movement of vocal fold and arytenoid movements preoperatively, the rate of thyroarytenoid muscle involvement was 33.3% (2/6), ...
Looking for online definition of cricoarytenoid in the Medical Dictionary? cricoarytenoid explanation free. What is cricoarytenoid? Meaning of cricoarytenoid medical term. What does cricoarytenoid mean?
In the present study we aimed to determine the functional properties and the myosin heavy chain (MHC) isoform composition of single chemically skinned fibres from the vocal muscle of four adult men (age: 55-67 years). Single fibres, dissected from the bioptic samples, were chemically skinned and isometric tension (P0) and maximal shortening velocity (V0) were measured at pCa 4.6. MHC and myosin light chain (MLC) composition of fibre segments and MHC distribution of the biopsy samples were analysed by SDS-poly-acrylamide gel electrophoresis (SDS-PAGE) and densitometry. Four MHC isoforms (1, 2A, 2X and a fourth isoform, provisionally called L) and five MLC isoforms (MLC1s, MLC1f, MLC3f, MLC2f, MLC2s) were identified. The major findings of this study were: (1) fast MHC isoforms (in particular MHC-2A) and fast fibres were predominant, (2) one-third of the fibres were mixed or hybrid, i.e. expressed more than one MHC isoform, (3) V0 and P0 values were determined by the MHC isoform composition and ...
The functional organization of laryngeal motoneurons in the nucleus ambiguous (NA) was evaluated in adult male rats before and after recurrent laryngeal nerve section and reinnervation. Using retrograde double labeling techniques with fluorescent probes, we obtained the number and position of labeled neurons by using the Bioquant 3-D imaging system. Reinnervation was documented by electromyography. In nine control animals vector analysis revealed significant (p less than .05) separation of the posterior cricoarytenoid (PCA) muscle motoneurons and the thyroarytenoid and lateral cricoarytenoid (TA/LCA) muscle motoneurons. The PCA motoneurons were positioned ventromedially in the NA, and TA/LCA motoneurons were found dorsolaterally in the NA. Rostral-caudal separation was not significant. Electromyography revealed phasic electrical activity synchronous with respiration in the PCA, and activity synchronous with deglutition in the TA/LCA. In four animals surviving 15 weeks following recurrent laryngeal nerve
Laryngeal muscles normally demonstrate mild activity which is usually bilateral and symmetric. Active contraction of any skeletal muscle including the laryngeal muscle, particularly during the first half-hour following FDG injection, can result in increased activity. Therefore, efforts are made to isolate the patient from conversation during and after tracer injection. However, increased activity is not uncommonly seen within the laryngeal muscles likely due to their use prior to injection and during the short conversations with the technologist at the time of injection or immediately thereafter. Asymmetric activity can be seen with recurrent laryngeal nerve palsy and vocal cord paralysis, with greater activity on the unaffected side.. ...
Laryngeal Adductor Spasmodic Dysphonia Symptom Checker: Possible causes include Psychogenic Hyperventilation. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
TY - JOUR. T1 - Location of the reflex centre for straining elicited by activation of pelvic afferent fibres of decerebrate dogs. AU - Fukuda, Hiroyuki. AU - Fukai, Kiyoko. N1 - Funding Information: This study was supported in part by Project Research Grant 59-702 from the Kawasaki Medical School. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.. PY - 1986/8/20. Y1 - 1986/8/20. N2 - The reflex centres for straining for defaecation, micturition and presumably for parturition were located electrophysiologically in decerebrate dogs. Stimulation of pelvic afferent fibres initially induced a sustained increase in nervous outflow to the diaphragm, rectus abdominis and lateral cricoarytenoid muscles and subsequently induced rhythmic increases which were superimposed on the sustained increase. The rhythmic increases occurred even after transection at the most rostral pons, but they were abolished by a partial cut at the most lateral part of the rostral pons following transection of the ...
Dystonia encompasses a broad and complex spectrum of clinical presentations that occur as a result of opposite muscles contracting (muscle co-contraction), involuntarily causing the muscle to spasm. Spasmodic dysphonia (SD) is a rare form of dystonia that affects the laryngeal muscles (vocal cords). It is also known as laryngeal dystonia.. The term spasmodic describes sudden and intermittent jerking movements of muscles and, as such, SD is characterised by poor vocal motor control during speech due to intermittent and involuntary spasms of the laryngeal muscles. SD is a task-specific disorder, which means that symptoms are only experienced while performing a specific task - in this case, speech. Emotive expressions such as screaming, crying and laughing are not affected and so SD is purely a speech disorder. Speech while whispering, shouting or singing appears to be less affected by the muscle contractions, and people may use one or more of these sensory tricks to try to alleviate the problem ...
Many of the signs of vocal cord paralysis we appreciate today on CT and MR studies were first described with laryngography (1-3). These include atrophy of the thyroarytenoid muscle, deviation of the arytenoid muscle, enlargement of the ventricle and piriform sinus on the side of the paralysis, and a paramedian position of the involved vocal cord. As we determined, an additional CT and MR feature of vocal cord paralysis is atrophy of the PCA muscle.. Atrophy of the PCA and thyroarytenoid muscles usually occurs as a result of recurrent laryngeal or vagal nerve palsy. Muscular atrophy consequent to a nerve palsy is referred to as denervation atrophy. Denervation atrophy has been documented on CT and MR studies in skeletal muscles as well as in muscles of the head and neck innervated by various cranial nerves, including the trigeminal (V), facial (VII), vagus (X), spinal accessory (XI), and hypoglossal (XII) nerves (6-8). Imaging criteria for the diagnosis of denervation atrophy include asymmetric ...
90791 avhandlingar från svenska högskolor och universitet. Avhandling: Pharyngeal function, airway protection and anesthetic agents.
The purpose of this study is to determine the feasibility of using extrinsic laryngeal muscle stimulation to elevate the larynx in a manner similar to that which occurs during normal swallowing. This research will also determine whether laryngeal elevation will open the upper esophageal sphincter to assist with entry of the bolus into the esophagus. This protocol includes studies in normal volunteers and patients with swallowing disorders. The outcome of this study will be relevant to future use of neuromuscular stimulation for laryngeal elevation in patients with pharyngeal dysphagia.... ...
Ive recently come to an interesting and personal conclusion. Voice Pedagogy is NOT Voice Science. In many academic institutions throughout the United States, voice students can take classes in Vocal Pedagogy at the college level. Most of these classes are formed upon an intensive study of laryngeal muscles, the throat, the torso, as well as an…
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rigidity of muscles. Symptoms → They begin in the region of the trunk and the lower extremities, then moving proximally in the upper limbs, and eventually affecting facial and laryngeal muscles (preventing swallow and speech). Psychic symptons → Depression and anxiety are often noted in SMS patients; this may be a result of discomfort due to stiffness and deterioration in the quality of life, rather than underlying neurochemical abnormalities; in fact MRI detection of GABA in the brain have demonstrated reduced levels of this hormone in stiff-person syndrome.. In Stiff-limb syndrome, a variant of the original SMS, symptoms affect focally one or more limbs, occurring predominantly in distal limb muscles rather than axial muscles. However, when severe spasms arise, motor symptoms can be also seen in the trunk, upper extremities and face. Increased distal limb stiffness in ankles and feet leads to a feet posture (feet being) in constant plantar flexion, and this, in turn, affects posture during ...
Diseases characterized by inflammation involving multiple muscles. This may occur as an acute or chronic condition associated with medication toxicity (DRUG TOXICITY); CONNECTIVE TISSUE DISEASES; infections; malignant NEOPLASMS; and other disorders. The term polymyositis is frequently used to refer to a specific clinical entity characterized by subacute or slowly progressing symmetrical weakness primarily affecting the proximal limb and trunk muscles. The illness may occur at any age, but is most frequent in the fourth to sixth decade of life. Weakness of pharyngeal and laryngeal muscles, interstitial lung disease, and inflammation of the myocardium may also occur. Muscle biopsy reveals widespread destruction of segments of muscle fibers and an inflammatory cellular response. (Adams et al., Principles of Neurology, 6th ed, pp1404-9 ...
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Residents and visitors to Scilly will finally be able to surf the web at superfast speeds on their mobile phones and iPads as operator EE switches on its superfast 4G network today.. Up until now, phone users have only been able to access slower 2G technology.. One of the people who will benefit from 4G on the islands is St Agnes Boating owner John Peacock, who can now take advantage of mobile payments on board his boats as well as remote access to his innovative online office.. John said: 4G from EE will radically alter the landscape of the islands. It will enable businesses to totally connect with their customers and vice versa.. In terms of our business, its really important our customers have connectivity all the time. Now they can pay while on board, or even order a boat while theyre sitting on the beach.. EE chief executive Marc Allera said the development has been made possible by the arrival of the superfast fibreoptic cable to the islands, which was completed in 2014.. Mr Allera ...
Synonyms for Abductor muscles in Free Thesaurus. Antonyms for Abductor muscles. 4 synonyms for abductor: kidnaper, kidnapper, snatcher, abductor muscle. What are synonyms for Abductor muscles?
From: TONE-DEAFNESS Tone deafness does not refer to a problem with the ears, but to a lack of training. Tone deafness is easy to fix by training the ears and the vocal muscles. Ive taught many people that thought they were tone deaf how to match … [Read more...] ...
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The purpose of this study was to investigate activity of hip adductor muscles over time and during a representative crank cycle in fatiguing pedaling. Sixteen healthy men performed incremental pedalin
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Comments: ALTERNATE EDITION: Brand NEW, Paperback International Edition. Black & White or color, Cover and ISBN are differ but similar contents as US editions. Standard delivery takes 5-9 business days by USPS with tracking number. Choose expedited shipping for superfast delivery 2-4 business days by DHL/FEDEX. We also ship to PO Box addresses but by Standard delivery. International Edition Textbooks may bear a label -Not for sale in the U.S. or Canada- etc. printed only to discourage U.S. students from obtaining an affordable copy. Le ...
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Laryngeal muscles. This results in an altered 'voice' and an increased risk of aspiration pneumonia (inhalation of food, saliva ... The toxin or toxins paralyze muscle tissue; in particular: Skeletal muscles. This results in the overt paralysis for which the ... Heart muscle. This results in congestive heart failure and pulmonary oedema, seen also as labored breathing. Spring is the peak ... Respiratory muscles. Initially this results in rapid, shallow breathing with an inability to cough. In advanced stages it is ...
"Attempts at Evaluation of the Function of various Laryngeal Muscles in the Light of Muscle and Nerve Stimulation Experiments in ... He did his PhD thesis on electromyography of laryngeal muscles in 1967 in Egypt. Later he moved to Norway, where he did a ... Kotby's research interest was focused on understanding the function of the small internal laryngeal muscles and the ... Kotby, M. N. (March 1969). "Electromyography of the laryngeal muscles". Electroencephalography and Clinical Neurophysiology. 26 ...
Each is overlapped on either side by laryngeal muscles. The conus elasticus (which means elastic cone in Latin) is the lateral ... Cricothyroid ligament Cricothyroid ligament Cricothyroid ligament Cricothyroid ligament Muscles, nerves and arteries of neck. ...
Flint PW, Shiotani A, O'Malley BW (March 1999). "IGF-1 gene transfer into denervated rat laryngeal muscle". Archives of ... A muscle protein promotes nerve healing Promotion of Functional Nerve Regeneration by Inhibition of Microtubule Detyrosination ... In addition, associated injuries, like injury to bone, muscle and skin, can make nerve recovery more difficult. The level of ... PTEN Muscle LIM protein Microtubule detyrosination Myelinogenesis Neuroprotection Spinal cord injury research Kandel ER, ...
... and are sometimes described as a separate muscle. This muscle's function is to widen the laryngeal inlet. This article ... Muscles of the head and neck, All stub articles, Muscle stubs). ... considerable number of the fibers of the thyroarytenoid muscle ... They have received a distinctive name, thyroepiglotticus or thyroepiglottic muscle, ...
Feng X, Files DC, Zhang T (2014). "Intrinsic Laryngeal Muscles and Potential Treatments for Skeletal Muscle-Wasting Disorders ... "Intrinsic laryngeal muscles are spared from myonecrosis in the mdx mouse model of Duchenne muscular dystrophy". Muscle & Nerve ... The intrinsic laryngeal muscles (ILMs) are protected and do not undergo myonecrosis. ILMs have a calcium regulation system ... Muscle weakness usually begins around the age of four, and worsens quickly. Muscle loss typically occurs first in the thighs ...
Schmidt, R.S. (1972). "Action of intrinsic laryngeal muscles during release calling in leopard frog". Journal of Experimental ... In addition, vocalizing muscles can make up 15% of a male spring peeper's body mass, while the same muscles are only 3% of ... In addition, their release calls and movements of their throats and sides are correlated with laryngeal calling movements. For ...
This weakens the laryngeal muscles, and results in a smoother voice. A language disorder is an impairment in the ability to ... Some examples include: increasing awareness of muscles around the mouth increasing awareness of oral postures improving muscle ... The difficulties are not due to weakness of muscles, but rather on coordination between the brain and the specific parts of the ... Therapeutic exercises must focus on planning, sequencing, and coordinating the muscle movements involved in speech production. ...
Breathing difficulties can occur, resulting from neuromyotonic activity of the laryngeal muscles. Laryngeal spasm possibly ... In one of the few reported cases, the subject presented with muscle weakness and fatigue, muscle twitching, excessive sweating ... In vivo electrophysiological studies suggest at least some dysfunction of the muscle cell membrane. In the examined muscles, no ... In 1890, Morvan described a patient with myokymia (muscle twitching) associated with muscle pain, excessive sweating, and ...
Because of the increased muscle tension of the paralaryngeal and laryngeal muscles, the larynx will be elevated on palpation. ... "The Assessment Methods of Laryngeal Muscle Activity in Muscle Tension Dysphonia: A Review". The Scientific World Journal. 2013 ... The goal of voice therapy is to encourage proper vocal used and decrease the tension of the laryngeal muscles. Examples of ... It is caused by increased tension of the laryngeal muscles secondary to personality traits such as anxiety or life factors such ...
MG's dominant characteristic is muscles weakness including facial, jaw, pharyngeal and laryngeal muscles. Charcot-Marie-Tooth ( ... Post-surgical intervention is warranted to restore laryngeal muscle strength, agility and coordination. Due to the complex and ... Electromyography of the larynx muscles (larynx EMG), which measures the electrical activity of the larynx muscles via thin ... These conditions result from continuous damage to the laryngeal nerves and often lead to vocal disability. Recurrent laryngeal ...
... and because of contraction of laryngeal and because of contraction of thyroarytenoid muscles. The consequence of this is that ... Where there is impairment in laryngeal vestibule sensation, silent aspiration (entry of material to the airway that does not ... because the aryepiglottic muscles contract; because of the passive weight of the food pushing down; ...
The tumor infiltrates into infrahyoid muscles, trachea, oesophagus, recurrent laryngeal nerve, carotid sheath, etc. The tumor ... be present are pain in the anterior region of the neck and changes in voice due to an involvement of the recurrent laryngeal ...
Tobias, M. L.; Marin, M. L.; Kelley, D. B. (1993). "The roles of sex, innervation and androgen in laryngeal muscle fibers of ... The roles of sex, innervation and androgen in laryngeal muscle fibers of Xenopus laevis, J. Neurosci. 13, 324 - 331. Fischer, L ... Catz, Diana S.; Fischer, Leslie M.; Kelley, Darcy B. (1995). "Androgen Regulation of a Laryngeal-Specific Myosin Heavy Chain ... Vocal circuitry in Xenopus laevis; telencephalon to laryngeal motor neurons. J. Comp. Neurol. 464:115-130. Yamaguchi, A. and ...
The superior laryngeal nerve innervates the two cricothyroid muscles. The recurrent laryngeal nerve gets its name from the fact ... The superior laryngeal nerve innervates the two cricothyroid muscles. A superior laryngeal nerve palsy changes the pitch of the ... the superior laryngeal nerve takes a more direct route on the way to the cricothyroid muscles. The superior laryngeal nerve ... the external laryngeal nerve and the internal laryngeal nerve. The external laryngeal nerve is the smaller, external branch. It ...
Airflow from the lungs, as well as laryngeal muscle contraction, causes movement of the vocal folds. It is the properties of ... and respiratory muscles. Precise and expeditious timing of these muscles is essential for the production of temporally complex ... During forced expiration for speech, muscles of the trunk and abdomen reduce the size of the thoracic cavity by compressing the ... Forced inspiration for speech uses accessory muscles to elevate the rib cage and enlarge the thoracic cavity in the vertical ...
... recurrent laryngeal nerve branches that innervate the thyroarytenoid muscle during the last stage of expiration; (3) the ... The activated muscles resist stretch through their own intrinsic biomechanical properties, providing a rapid form of length and ... Goslow GE Jr.; Reinking RM; Stuart DG (1973). "The cat step cycle: hind limb joint angles and muscle lengths during ... Hiebert GW, Whelan PJ, Prochazka A, Pearson KG (1996). "Contribution of hind limb flexor muscle afferents to the timing of ...
Sensitivity of elastic properties to measurement uncertainties in laryngeal muscles with implications for voice fundamental ... Individual subject laryngeal dimensions of multiple mammalian species for biomechanical models. Ann Otol Rhinol Laryngol. 2005 ... Individual subject laryngeal dimensions of multiple mammalian species for biomechanical models. Ann.Otol.Rhinol.Laryngol. 114 ( ... Refinements in modeling the passive properties of laryngeal soft tissue. J Appl Physiol. 2007 Jul;103(1):206-19. PMID 17412782 ...
Laryngeal musculature relaxation techniques: Laryngeal muscles surround the vocal folds and by relaxing them, there is reduced ... of another male or sibling Excessive maternal protection Laryngeal muscle tension which then causes laryngeal elevation Muscle ... This allows the patient to practice using a lower pitch and also to relax the laryngeal muscles. Half swallow boom technique: ... The habitual use of a high pitch while speaking is associated with tense muscles surrounding the vocal folds. Assessment and ...
... muscles innervated by recurrent laryngeal nerve) and the vocal cords contract to shut the larynx. The abdominal muscles ... When triggered, impulses travel via the internal laryngeal nerve, a branch of the superior laryngeal nerve which stems from the ... The reflex is impaired in the person whose abdominals and respiratory muscles are weak. This problem can be caused by disease ... The mechanism of a cough is as follows: Diaphragm (innervated by phrenic nerve) and external intercostal muscles (innervated by ...
Physiologically, the glottis is closed by intrinsic laryngeal muscles such as the lateral cricoarytenoid, thyroarytenoid, and ... These muscles act on the arytenoid cartilages at the posterior ends of the vocal cords and are innervated by the left and right ... The strap muscles, pharynx, and larynx are dissected to expose the muscular process of the arytenoid cartilage. A permanent ... A suture is used to emulate the action of the lateral cricoarytenoid muscle and position the paralyzed vocal cord closer to the ...
Laryngeal electromyography is a test that measures the electrical signals from the voice box muscles (laryngeal muscles) during ... paralysis resulting in loss of muscle function, and the functionality of the motor unit of the laryngeal muscles. Laryngeal ... Individuals who develop this syndrome tend to speak or perform with poor breath support and laryngeal muscle tension. Causes ... "Muscle Tension Dysphonia". University of Pittsburg. Department of Otolaryngology. Retrieved 17 December 2020. "Laryngeal ...
By overstressing or by asymmetrically contracting the laryngeal muscles, a multiphonic or chord may be produced.[citation ...
In 1983, he was diagnosed with a laryngeal muscle disorder and did not return to the stage until 1986. In 2015 and 2019, he ...
The laryngeal and pharyngeal muscles located in the throat make prosody and intonation difficult to understand for people with ... For example, in those with autism, pathways running through to the middle ear muscles make it difficult for the person to focus ... Raising eyelids was also found to hinder the stapedius muscle by tensing it, which in turn makes it difficult for these ...
The intrinsic laryngeal muscles are responsible for moving the arytenoid cartilages as well as modulating the tension of the ... These phonemes are then coordinated into a sequence of muscle commands that can be sent to the muscles, and when these commands ... These phonemes are then coordinated into a sequence of muscle commands that can be sent to the muscles, and when these commands ... The arm, for example, has seven degrees of freedom and 22 muscles, so multiple different joint and muscle configurations can ...
Surgeries involve myoectomies of the laryngeal muscles to reduce voice breaks, and laryngoplasties, in which laryngeal ... The most common laryngeal diagnoses among the elderly are polyps, laryngopharyngeal reflux, muscle tension dysphonia, vocal ... Laryngeal stroboscopy is the primary clinical tool used for this purpose. Laryngeal stroboscopy uses a synchronized flashing ... which has been used to reduce tension and massage hyoid-laryngeal muscles. This area is often tense from chronic elevation of ...
Strap muscles, such as the laryngeal muscles, have been thought to control the fundamental frequency used in speech production ... The parallel muscle architecture is found in muscles where the fibers are parallel to the force-generating axis. These muscles ... Muscles with short fibers will have higher PCSA per unit muscle mass, thus greater force production, while muscle with long ... Pennate muscles can be further divided into uni-, bi- or multipennate. Unipennate muscles are those where the muscle fibers are ...
... by contracting the intrinsic laryngeal muscles. Females also answer vocally, signaling either acceptance (a rapping sound) or ...
Symptomatic voice therapy can modify respiration, phonation, resonance, voice, loudness, rate, and laryngeal muscle tension and ... The main targets of accent methods are: To increase the pulmonary output To reduce tension in muscles To reduce glottis waste ... Voice Function Assessment: A clinical assessment of voice function includes a laryngeal exam, perceptual examination of vocal ... During diaphragmatic breathing, the patient is trained to elicit and monitor abdominal breathing and muscle relaxation. Rhythms ...
Laryngeal features: The features that specify the glottal states of sounds. [+/− voice] This feature indicates whether ... segments bunch the root of the tongue towards the pharyngeal wall and activate the pharyngeal constrictor muscles [ GLOTTAL ][ ... Vowels, glides and laryngeal segments are not consonantal. [+/− approximant] Approximant segments include vowels, glides, and ... laryngeal features, manner features, and place features. These feature categories in turn are further specified on the basis of ...
The muscles of the face and lips consequently became less constrained, enabling their co-option to serve purposes of facial ... However, laryngeal descent in nonhumans (according to Philip Lieberman) is not accompanied by descent of the hyoid; hence the ... The muscles concerned are markedly more innervated in humans than in nonhuman primates. Evidence from fossil hominins suggests ... Human tongues are a lot shorter and thinner than other mammals and are composed of a large number of muscles, which helps shape ...
Attention is paid on any deep nerve structures as the recurrent laryngeal nerve. The goal is to expose the affected disc and ... Based on actual data dogs receiving physiotherapy which serves the strengthening of the muscles and stimulating the spinal cord ...
... also known α-smooth muscle actin) and desmin (i.e. an intermediate filament protein found in all muscle forms including smooth ... difficulty in swallowing and breathing due to a laryngeal LGMS tumor, and abdominal pain due to a pancreas LGMS tumor. A study ... Eighty-two percent of their LGMS tumors were located in soft tissues (28.2% in mucous membranes, 21.8% in muscle, 19.2% in skin ... The tumors are not encapsulated and commonly infiltrate adjacent fibrous, fat, or skeletal muscle tissues. (The tumor's spindle ...
Other respiratory muscles include the external and internal intercostal muscles, the abdominal muscles and the accessory ... Acute shortness of breath is usually connected with sudden physiological changes, such as laryngeal edema, bronchospasm, ... Muscle spindles in the chest wall signal the stretch and tension of the respiratory muscles. Thus, poor ventilation leading to ... Efferent signals are the motor neuronal signals descending to the respiratory muscles. The most important respiratory muscle is ...
... , also known as laryngeal dystonia, is a disorder in which the muscles that generate a person's voice go ... Recurrent laryngeal nerve resection involves removing a section of the recurrent laryngeal nerve. Recurrent laryngeal nerve ... Being able to differentiate between muscle tension dysphonia and spasmodic dysphonia is important because muscle tension ... Surgical approaches include recurrent laryngeal nerve resection, selective laryngeal adductor denervation-reinnervation (SLAD-R ...
These include all kinds of muscular strain in the speech organs, similarly as usage of any other muscles will experience strain ... voice quality - Using a vocal quality which differs from that habitually used is thought to increase laryngeal stress. In ... Using a higher or lower pitch than normal will also increase laryngeal stress. ...
suggest that the accumulation of H19 RNA in skeletal muscle cells is solely due to the stabilization of that RNA in the muscle ... H19 is overexpressed in laryngeal squamous cell carcinomas that relapse as compared to those that do not relapse. In a pilot ... H19 was first named ASM (for Adult Skeletal Muscle) because of its expression in adult skeletal muscle ("ASM") in rats. H19 is ... Immediately after birth, H19 expression is downregulated in all tissues except for skeletal muscle. Studies by Tanos et al. ...
Imaging is most commonly done with laryngeal videostroboscopy. A videostroboscopy is an examination of the vocal folds using ... and the Thyroarytenoid Muscle. Vocal fold cysts commonly appear in the Superficial portion of the Lamina Propria, the cyst size ... Vocal fold cysts are diagnosed based on gathering a case history, perceptual examination, and laryngeal imaging. Practicing ...
Cruickshanks GF, Brown S, Chitayat D (1999). "Anesthesia for Freeman-Sheldon syndrome using a laryngeal mask airway". Can J ... Online Mendelian Inheritance in Man (OMIM): MYOSIN, HEAVY CHAIN 3, SKELETAL MUSCLE, EMBRYONIC; MYH3 - 160720 b .0001 c .0002 d ... with avoidance of radical measures and careful consideration of the abnormal muscle physiology in Freeman-Sheldon syndrome. ... Due to the abnormal muscle physiology in Freeman-Sheldon syndrome, therapeutic measures may have unfavourable outcomes. ...
Within these components are the pilosebaceous units, arrector pili muscles, and the eccrine and apocrine glands. The dermis ... laryngeal papillomatosis) Rift Valley fever Roseola infantum (exanthem subitum, exanthema subitum, sixth disease) Roseola ... and related muscle and glands. The major function of this system is as a barrier against the external environment. The skin ... and a deeper vestigial layer of muscle, the panniculus carnosus. The main cellular component of this tissue is the adipocyte, ...
... s have oesophageal muscles that are strong enough to allow regurgitation of food from the stomach up the neck and into ... In mammals, the left recurrent laryngeal nerve is longer than the right; in the giraffe, it is over 30 cm (12 in) longer. These ... The giraffe's head and neck are held up by large muscles and a nuchal ligament, which are anchored by long thoracic vertebrae ... Wedel, M. J. (2012). "A monument of inefficiency: the presumed course of the recurrent laryngeal nerve in sauropod dinosaurs" ( ...
... sternohyoid muscle, and omohyoid muscles, and with the body of the hyoid bone. It is pierced by the superior laryngeal nerve. ... Its lateral thinner portions are pierced by the superior laryngeal vessels and the internal branch of the superior laryngeal ... Bruyn, G. W. (1983-12-01). "Superior Laryngeal Neuralgia". Cephalalgia. 3 (4): 235-240. doi:10.1046/j.1468-2982.1983.0304235.x ... Thyrohyoid membrane Thyrohyoid membrane Thyrohyoid membrane Muscles, nerves and arteries of neck. Deep dissection. Anterior ...
One particular discovery he made was of the importance of the recurrent laryngeal nerves. Originally, he cut through them ... Luigi Galvani (1737-1798) demonstrated that electrical stimulation of nerve produced muscle contraction, and the competing work ... in the muscles of the larynx on both left and right, which if ligated or cut render the animal speechless without damaging ...
Ji Guobiao, 87, Chinese chemical engineer, member of the Chinese Academy of Engineering, laryngeal cancer. Alberto Jara Franzoy ... 90, Chilean Roman Catholic prelate, Bishop of Chillán (1982-2006). Jimmy Johnson, 76, American musician (Muscle Shoals Rhythm ...
It refers to a dynamic relationship between the breathing-in muscles and the breathing-out muscles known as the breath support ... Registers originate in laryngeal function. They occur because the vocal folds are capable of producing several different ... Singing does not require much muscle strength but it does require a high degree of muscle coordination. Individuals can develop ... If a singer holds any of these factors constant and interferes with their progressive state of change, his laryngeal function ...
The laryngeal muscles in control of the glottis are thought to be driven by a neural oscillator which generates a cycle of ... While asleep, cats experience short periods of rapid eye movement sleep often accompanied by muscle twitches, which suggests ...
Although most people with CP have problems with increased muscle tone, some have normal or low muscle tone. High muscle tone ... Speech problems are associated with poor respiratory control, laryngeal and velopharyngeal dysfunction, and oral articulation ... Signs and symptoms vary among people and over time, but include poor coordination, stiff muscles, weak muscles, and tremors. ... Phelps developed surgical techniques for operating on the muscles to address issues such as spasticity and muscle rigidity. ...
For example, it can be attached to an endotracheal tube or laryngeal mask airway. Small heat and moisture exchangers, or ... Under normal breathing, the lungs inflate under a slight vacuum when the chest wall muscles and diaphragm expand; this "pulls" ...
If both the inner layer and the muscle layer of the aortic wall are both involved in the injury then the injury is categorized ... and hoarseness due to involvement of the recurrent laryngeal nerve. There might be external signs such as bruising on the ... If just the inner layer and a portion of the muscle layer are involved in the injury then the injury is characterized as ... the muscle layer (media), and the outer layer (adventitia). A traumatic injury to the thoracic aorta can cause disruption of ...
The bolus enters the esophagus and is propelled downwards first by striated muscle (recurrent laryngeal, X) then by the smooth ... Swallowing is a complex mechanism using both skeletal muscle (tongue) and smooth muscles of the pharynx and esophagus. The ... The intrinsic muscles of the tongue (XII) contract to make a trough (a longitudinal concave fold) at the back of the tongue. ... Next, the superior longitudinal muscle elevates the apex of the tongue to make contact with the hard palate and the bolus is ...
... hyoid bone sternothyroid muscle (lowers thyroid) sternohyoid muscle (lowers hyoid) stylohyoid muscle (raises hyoid) digastric ... the laryngeal piston) is raised decreasing the oral cavity volume behind the valve closure and increasing the pressure compared ... lateral cricoarytenoid muscle (fold shortening/stiffening) thyroarytenoid muscle (medial compression/fold stiffening, internal ... cricoid cartilage thyroid cartilage arytenoid cartilage interarytenoid muscles (fold adduction) posterior cricoarytenoid muscle ...
... muscle rectus capitis anterior muscle rectus capitis lateralis muscle rectus femoris muscle rectus sheath recurrent laryngeal ... motor unit mouth mucoperiosteum mucosa mucous membranes multifidus muscle muscle fascicle muscle spindle muscle tissue muscles ... levator muscle levator labii superioris muscle levator palpebrae muscle levator palpebrae superioris levator scapulae muscle ... sternocleidomastoid muscle sternohyoid muscle sternothyroid muscle sternum stoma stomach straight sinus strap muscles Stratum ...
Dystonia Abnormal muscle tone of one or more muscles. Ear infection Presence and growth of bacteria or viruses in the ear. ... Laryngeal neoplasms Abnormal growths in the larynx (voice box) that can be cancerous or noncancerous. Laryngeal nodules ... Developmental verbal dyspraxia In individuals with normal muscle tone and speech muscle coordination, partial loss of the ... because of muscle weakness or incoordination or difficulty performing voluntary muscle movements. Neuroplasticity Ability of ...
Laryngeal echolocation is the dominant form of echolocation in microbats, however, it is not the only way in which microbats ... The larynx is located at the cranial end of the trachea and is surrounded by cricothyroid muscles and thyroid cartilage. For ... "Evolutionary origins of ultrasonic hearing and laryngeal echolocation in bats inferred from morphological analyses of the inner ... the importance of this connection is that it supports the larynx by anchoring it to the surrounding cricothryroid muscles, as ...
... and the sternocleidomastoid muscle. Behind, it is in relation with the esophagus, thoracic duct, left recurrent laryngeal nerve ... the clavicular origin of the sternocleidomastoid muscle, the sternohyoid muscle, and the sternothyroid muscle, and another ... The second portion of the subclavian artery lies behind the scalenus anterior muscle and in front of the scalenus medius muscle ... It is covered by the sternothyroid muscle, the sternohyoid muscle, ...
... muscle tissue MeSH C04.557.450.590.350 - granular cell tumor MeSH C04.557.450.590.450 - leiomyoma MeSH C04.557.450.590.450.125 ... laryngeal neoplasms MeSH C04.588.443.665.650 - nose neoplasms MeSH C04.588.443.665.650.693 - paranasal sinus neoplasms MeSH ... smooth muscle tumor MeSH C04.557.450.795 - sarcoma MeSH C04.557.450.795.135 - adenosarcoma MeSH C04.557.450.795.290 - ... muscle neoplasms MeSH C04.588.839.750 - vascular neoplasms MeSH C04.588.894.309 - heart neoplasms MeSH C04.588.894.479 - ...
A Method to Measure Elicited Contraction of Laryngeal Adductor Muscles during Anesthesia François Donati, Ph.D., M.D., F.R.C.P. ... ORG 9487 Neuromuscular Block at the Adductor Pollicis and the Laryngeal Adductor Muscles in Humans Anesthesiology (June 1997) ... François Donati, Benoît Plaud, Claude Meistelman; A Method to Measure Elicited Contraction of Laryngeal Adductor Muscles during ... Rapid Plasma-Effect Site Equilibration Explains Faster Onset at Resistant Laryngeal Muscles than at the Adductor Pollicis ...
Laryngeal Manual Therapy: A Preliminary Study to Examine its Treatment Effects in the Management of Muscle Tension Dysphonia. * ... Laryngeal Manual Therapy: A Preliminary Study to Examine its Treatment Effects in the Management of Muscle Tension Dysphonia ... Muscle tension dysphonia and spasmodic dysphonia: the role of manual laryngeal tension reduction in diagnosis and management. ... for the evaluation of a method of laryngeal manual therapy (LMT) used in the treatment of patients with muscle tension ...
Immunohistochemical analysis of laryngeal muscles in normal horses and horses with subclinical recurrent laryngeal neuropathy. ... Expression of myosin heavy chain isoforms in laryngeal muscles in comparison with skeletal and special muscles. MACCATROZZO, ... Immunohistochemical analysis of laryngeal muscles in normal horses and horses with subclinical recurrent laryngeal neuropathy. ... A new concept in laryngeal muscle: multiple myosin isoform types in single muscle fibers of the lateral cricoarytenoid. ...
Neck and Laryngeal Muscles. Preview. Open with.... *Courseware. *Web Suite. *Mobile. *. Copy Link. ...
... which antibodies form against acetylcholine nicotinic postsynaptic receptors at the neuromuscular junction of skeletal muscles ... Weakness of the laryngeal muscles results in hoarseness. This can be elicited by asking the patient to make a high-pitched (" ... Certain limb muscles are involved more commonly than others (eg, upper limb muscles are more likely to be involved than lower ... They may have facial and tongue muscle atrophy and may mimic ALS. [31] Some patients have early respiratory muscle and neck ...
... which antibodies form against acetylcholine nicotinic postsynaptic receptors at the neuromuscular junction of skeletal muscles ... Weakness of the laryngeal muscles results in hoarseness. This can be elicited by asking the patient to make a high-pitched (" ... Certain limb muscles are involved more commonly than others (eg, upper limb muscles are more likely to be involved than lower ... They may have facial and tongue muscle atrophy and may mimic ALS. [31] Some patients have early respiratory muscle and neck ...
Laryngeal Muscle use Laryngeal Muscles Laryngeal Muscles Laryngeal Neoplasm use Laryngeal Neoplasms ... Laryngeal Cancer use Laryngeal Neoplasms Laryngeal Cancers use Laryngeal Neoplasms Laryngeal Cartilage use Laryngeal Cartilages ... Laryngeal Epithelium use Laryngeal Mucosa Laryngeal Granuloma use Granuloma, Laryngeal Laryngeal Granulomas use Granuloma, ... Laryngeal Nerve Contusions use Laryngeal Nerve Injuries Laryngeal Nerve Injuries Laryngeal Nerve Injury use Laryngeal Nerve ...
In the three species, the laryngeal muscles were similar to those of other domestic animals, but the hyoepiglotticus muscle of ... Some Comparative Anatomical Studies on the Laryngeal Muscles and Cavity of Buffaloes, Camels and Donkeys Authors. * Mohamed A. ... The aim of this study was to compare between the laryngeal muscles and cavity in buffaloes, camels and donkeys. A total of 30 ... The laryngeal cavity of donkey was characterized by the presence of lateral laryngeal saccule that located between the two ...
Uncontrolled intrinsic laryngeal Muscle Contraction. *Neurogenic causes in most cases. *Psychogenic in some cases surrounding ... Otolaryngology - Laryngeal Disease Pages Acute Laryngitis Chronic Laryngitis Dysphonia Plicae Ventricularis Functional Aphonia ... Laryngeal Fracture Reflux Laryngitis Smokers Laryngitis Spastic Dysphonia Vocal Cord Dysfunction Vocal Cord Paralysis Vocal ... Laryngeal Disease Chapter Lip Disorders Chapter Mental Health Chapter Nasal Disease Chapter Neonatology Chapter Neurology ...
Use of the intubating laryngeal mask airway: Are muscle relaxants necessary? Anesthesiology. 2000;93:345-350. 37. Davies PRF, ... Muscle Relaxants. Use of muscle relaxation in patients to be intubated has shown to decrease the number of complications when ... is the only depolarizing muscle relaxant in clinical use. At an induction dose of 1-1.5 mg/kg, it is used as the muscle ... Knowledge of the innervation of the larynx, particularly the left recurrent laryngeal nerve (RLN) and the superior laryngeal ...
After it is administered, the NMB of the diaphragm is slower than laryngeal muscles and slowest at the adductor pollicis muscle ... Propofol depresses pharyngeal and laryngeal muscle tone and reflexes more than the other induction agents mentioned. ... Paralysis proceeds from the small, distal, rapidly moving muscles to the proximal, slowly moving muscles. The diaphragm is one ... the ocular pupillary sphincter muscle itself is composed of smooth muscle, and its neuromuscular endplate is populated by ...
Intrinsic Laryngeal Muscle Activity And Vocal Fold Adduction Patterns In Female Vocal Registers: Chest, Chest Dominant Mix, And ...
The human larynx at the end of the embryonic period proper: 1. The laryngeal and infrahyoid muscles and their innervation. Acta ...
... and career longevity in racing Quarter Horses with recurrent laryngeal neuropathy (RLN) and to evaluate performance variables ... Treatment of left laryngeal hemiplegia in Standardbreds, using a nerve muscle pedicle graft. Am J Vet Res 1991;52:1461-1467. ... Treatment of left laryngeal hemiplegia in Standardbreds, using a nerve muscle pedicle graft. . Am J Vet Res. 1991. ;. 52. :. ... Racing performance in 72 racehorses treated with prosthetic laryngoplasty for laryngeal hemiplegia. J Equine Vet Sci 2009;29: ...
The lateral cricoarytenoid and posterior cricoarytenoid muscles and the vagus, recurrent laryngeal, and superior laryngeal ... Knowledge of normal laryngeal anatomy and physiology will help the pharmacist understand the etiology of VCD (Figure 1).[6] ... and lateral cricoarytenoid muscles causes adduction of the vocal cords.[14] The respiratory movements of the vocal cords are ... coordinated with those of the diaphragm and other muscles of the ventilator pump.[15] A complex innervation of muscles and ...
This is to ensure the singer does not succumb to using compensatory muscles (which create excess laryngeal pressure) in lieu of ... Whats going on with your muscles? Any strain in your head or neck from working out?. How has your digestion been?. Are you ... You realize quickly how the muscles are smarter than you, and are not so willing to perform on command. So ongoing vocal work ... I would teach significantly different exercises for rock and pop shows to help the vocal muscles meet the demands than I would ...
These biomarkers stem from disruptions the infection causes in the movement of muscles across the respiratory, laryngeal, and ... They hypothesized that Covid-19 inflammation causes muscles across these systems to become overly coupled, resulting in a less ... This air interacts with hundreds of other potentially inflamed muscles on its journey to speech production. These interactions ...
Anomalous unilateral intrinsic laryngeal muscle: A case report. Pai, S. R. & Marx, C. S., 01-03-2007, In: Indian Journal of ... Anomalous muscle from the fascia around popliteal vessels.. Rodrigues, V., Nayak, B. S., Rao, M. K. G., Rao, A. S., ... Anomalous muscle belly to the index finger. DCosta, S., Jiji, Nayak, S. R., Sivanadan, R. & Abhishek, 04-09-2006, In: Annals ... Anomalous origin of the lumbrical muscles: A study on South Indian cadavers. Potu, B. K., Gorantla, V. R., Rao, M. S., Bhat, K ...
Laryngeal spreaders were used to expose the underlying cricopharyngeus muscle. With dissection of mucosa from the muscle, the ... Laimers: located inferior and posterior to the cricopharyngeus muscle; inverted triangle of circular esophageal muscle in area ... inferior to the transverse portion of the cricopharyngeus muscle and lateral to the longitudinal muscle of the esophagus (LEM ... Zenkers: most common form, originates posteriorly below the inferior constrictor and above the cricopharyngeus muscle. They ...
On July 24, based on the presence of fever, muscle spasms after external stimulation, laryngeal spasms, and muscle atrophy, ... and worsening muscle soreness. On July 17, he showed symptoms of dysphagia, hearing loss, and incoherent speech and was ...
... to primarily gate the respiratory motor activity of the cranial nerves innervating the laryngeal adductor and tongue muscles ... Greer JJ, Martin TP (1990) Distribution of muscle fiber types and EMG activity in cat intercostal muscles. J Appl Physiol (1985 ... and muscles in the rostral interspaces show stronger activities than muscles in the caudal interspaces in anesthetized dogs and ... In the hindlimb muscle, although the soma size of the slow-twitch oxidative motor unit tended to be smaller than that of the ...
Laukkanen A-M, Titze IR, Finnegan EM, Hoffman H. Laryngeal muscle activity in a tonal scale: Comparing speech-like to song-like ... Titze IR, Finnegan EM, Laukkanen A-M, Fuja M, Hoffman H. Laryngeal muscle activity in giggle: A damped oscillation model. The ... Effects of a semi-occluded vocal tract on laryngeal muscle activity and glottal adduction in a single female subject. Folia ... Titze IR, Finnegan EM, Laukkanen A-M, Fuja M, Hoffman H. Laryngeal muscle activity in giggle: A damped oscillation model. ...
... area noninvasively and provides simultaneous remote monitoring of muscle activity and laryngeal movement during swallowing ...
Laryngeal injuries and tracheal intubating conditions with or without muscle relaxation i. Shetty, N., Sharma, M., Goneppanavar ... Isolated bilateral triceps muscle weakness as a presenting complaint in myasthenia gravis: A review. Thilak, M. R., Prabhu, A. ...
When injected, BTX blocks nerve signals to muscles so they relax. ... This weakens the muscles and improves voice quality. It is not ... You would have this procedure if you have been diagnosed with laryngeal dystonia. BTX injections are the most common treatment ... When injected, BTX blocks nerve signals to muscles so they relax.. BTX is the toxin that causes botulism, a rare but serious ... An EMG machine records the movement of your vocal cord muscles through tiny electrodes placed on your skin. This helps your ...
The patient becomes restless and shows extreme excitability; muscle spasms; laryngeal spasms; convulsions and paralysis. ... pacing, circling), apparent loss of balance (ataxia), muscle twitches. This is a great killer of many dogs, if not vaccinated ...
... we conducted an analysis in order to understand the role of intrinsic laryngeal muscles. ... Laryngeal and pharyngeal tumors exhibit a high incidence in Brazil, occupying the sixth position as the most frequent cancer ... Based on a case of selective paralysis of lateral cricoarytenoid muscle in a woman who had paralyzed vocal fold at lateral ... Laryngomalacia is the most common cause of stridor and the most common congenital laryngeal anomaly in infants. Usually, it ...
... because the function and performance of laryngeal skeletal muscle can be different from those of skeletal muscles used for ... A brief review of basic principles of muscle training as understood for skeletal muscle will be followed by a more extensive ... To date, the use of the basic principles of muscle training for designing a voice rehabilitation program or advising voice ... The basic principles of exercise training for skeletal muscle adaptations have been applied to voice training for some time. ...
laryngeal cancer symptoms. if the cellular changes affect the vocal folds or the muscles that move them, then voice symptoms ... botox injections to weaken the affected muscles. - usually the main muscle in the center of the vocal folds, bc most cases are ... removal of the entire larynx and extra laryngeal muscles with major reconstruction that achieves functional ... laryngeal can be painless and soundfine. - your voice after a football game canbe painful and almost aphonic - the client might ...
Laryngeal paralysis can make it difficult for a dog to swallow and even breathe. Learn the causes, treatment, and prevention. ... In the case of laryngeal paralysis, the muscles that move the larynx become paralyzed, making it impossible for the larynx to ... What Is Laryngeal Paralysis? Laryngeal paralysis is a condition that affects the larynx in a dogs throat. The larynx is a ... How to Prevent Laryngeal Paralysis There is no guaranteed way to prevent laryngeal paralysis, but you can reduce the chances by ...
  • Larynx in mammals is characterized by five intrinsic laryngeal muscles with complex movements involved in respiration, airway protection and phonation. (unipd.it)
  • Knowledge of the innervation of the larynx, particularly the left recurrent laryngeal nerve (RLN) and the superior laryngeal nerve (SLN), is important with regards to airway management. (ispub.com)
  • [ 15 ] A complex innervation of muscles and nerves causes the larynx to adduct and abduct the vocal cords. (medscape.com)
  • Laryngeal paralysis affects the larynx, which is part of a dog's throat. (thesprucepets.com)
  • Laryngeal paralysis is a condition that affects the larynx in a dog's throat. (thesprucepets.com)
  • Surrounding muscles normally work to pull the larynx open, allowing air into the lungs while breathing. (thesprucepets.com)
  • In the case of laryngeal paralysis, the muscles that move the larynx become paralyzed, making it impossible for the larynx to fully open or close the trachea. (thesprucepets.com)
  • Additionally, when a dog with laryngeal paralysis is eating, it may gag or cough due to the larynx allowing food or water to enter the trachea. (thesprucepets.com)
  • Less severe cases may only need anti-inflammatory medications to reduce laryngeal swelling, weight loss to relieve pressure on the larynx, and restriction from exciting activities. (thesprucepets.com)
  • As we age, the folds of muscle that surround the larynx weaken, causing the voice to sound hoarse and breathy. (undergroundhealthreporter.com)
  • Laryngeal cancer is a disease in which malignant (cancer) cells form in the tissues of the larynx. (emedicinehealth.com)
  • Laryngeal Cancer and Papillomatosis in Children In laryngeal cancer , malignant ( cancer ) cells form in the tissues of the larynx. (emedicinehealth.com)
  • Various injuries to the nerve supply of the larynx weaken some of the muscles and in this case the nerve injury involves the anterior branch of the recurrent laryngeal nerve. (voicedoctor.net)
  • We also show that koalas can retract the larynx down into the thoracic inlet, facilitated by a dramatic evolutionary transformation of the ventral neck muscles. (sussex.ac.uk)
  • Finally, the digastric, omohyoid and sternohyoid muscles, connected by a common tendinous intersection, form a guiding channel for the dynamic down-and-up movements of the ventral hyoid parts and the larynx. (sussex.ac.uk)
  • Muscles, nerves, and blood vessels surround the larynx. (drjustinelee.com)
  • Immunohistochemical analysis of laryngeal muscles in normal horses and horses with subclinical recurrent laryngeal neuropathy. (unipd.it)
  • What Is Laryngeal Paralysis? (thesprucepets.com)
  • The most obvious symptoms of laryngeal paralysis are audible ones that might initially sound like the dog has something caught in its throat. (thesprucepets.com)
  • Dogs that have developed laryngeal paralysis may sound noisy when they are breathing and panting. (thesprucepets.com)
  • Because it is more difficult for a dog with laryngeal paralysis to breathe, it may tire more easily and even collapse in more advanced stages of the disease. (thesprucepets.com)
  • Labrador retrievers , golden retrievers , St. Bernards , Newfoundlands , and English setters seem to be the most commonly affected breeds, but laryngeal paralysis can also occur in any dog. (thesprucepets.com)
  • Research indicates that there may also be a few underlying medical conditions that can increase the likelihood of developing laryngeal paralysis. (thesprucepets.com)
  • A veterinarian will listen to and watch the symptoms that the dog is exhibiting to make a diagnosis of laryngeal paralysis. (thesprucepets.com)
  • Surgical correction is the only treatment option for dogs with severe cases of laryngeal paralysis. (thesprucepets.com)
  • If laryngeal paralysis is a problem that is related to hypothyroidism or degenerative polyneuropathy, then other treatment options will be recommended by your veterinarian to address the specific underlying condition. (thesprucepets.com)
  • Other more common genetic disorders in sled dogs up here has been laryngeal paralysis (as Chanel has), severe over bites or under bites and thyroid problems. (carolkleckner.net)
  • Bilateral injury to the RLN can cause adduction of both the vocal cords leading to complete airway obstruction.3,4 The external branch of the superior laryngeal nerve supplies the cricothyroid muscle after transversing the thyrohyoid membrane. (ispub.com)
  • It was also demonstrated that a second type of airflow interruption was initiated by alterations in respiratory muscle activity without any changes in specific airway resistance. (cdc.gov)
  • However, a swallow study noted food entering the airway (deep laryngeal penetration), requiring honey-thickened liquids to prevent aspiration. (harvard.edu)
  • It is not a cure for laryngeal dystonia, but can help ease the symptoms. (medlineplus.gov)
  • You would have this procedure if you have been diagnosed with laryngeal dystonia . (medlineplus.gov)
  • Comparison of clinical characteristics of patients with adductor laryngeal dystonia in the focal and segmental types. (medscape.com)
  • Spasmodic dysphonia , also called laryngeal dystonia, is a neurological disorder, responsible of a strangulated, strained voice and rarely of a whispering voice, which has a major negative influence at work and in personal life. (infodystonia.com)
  • The weaker vocal cord still receives tension from the uninjured cricothyroid muscle but lacks intrinsic tension. (voicedoctor.net)
  • Smooth muscle contraction may lead to laryngeal stridor, dysphagia, and bronchospasm. (medscape.com)
  • The aim of this study was to compare between the laryngeal muscles and cavity in buffaloes, camels and donkeys. (advetresearch.com)
  • The ventricular folds (O.T. false vocal cords) are two prominent folds of mucous membrane which extend ventro-dorsally on the lateral walls of the laryngeal cavity. (co.ma)
  • The branchiomeric muscles of vertebrates comprise the pharyngeal and laryngeal muscles while the orobranchial muscles of chordates comprise the gill and mouth muscles/cavity. (vedantu.com)
  • Succinylcholine Induced Masseter Muscle Spasm during Rapid Sequence Induction in a Pregnant Patient with Kypho- Scoliosis: Case Report. (aimdrjournal.com)
  • The thyroarytenoid muscle and the lateral cricoarytenoid muscle on the left side have only partial innervation. (voicedoctor.net)
  • [ 14-16 ] The lateral cricoarytenoid and posterior cricoarytenoid muscles and the vagus, recurrent laryngeal, and superior laryngeal nerves are involved in this process. (medscape.com)
  • The lateral or the posterior cricoarytenoid - laryngeal muscles. (tipilandia.es)
  • resides anterolateral to the esophagus - inferior to the transverse portion of the cricopharyngeus muscle and lateral to the longitudinal muscle of the esophagus (LEM), where the LEM inserts into the inferior border of the cricoid cartilage. (uiowa.edu)
  • The cancers that affect brain, esophagus, thyroid gland, head muscles, skin cancers are not considered as head and neck cancers. (safemedtrip.com)
  • Patients with spasmodic dysphonia require to be distinguishing from patients with functional dysphonia and from patients with "muscle tension dysphonia" (MTD) which is also considered a functional disorder rather than a neurological disorder. (infodystonia.com)
  • 7- "Muscle tension dysphonia" (MDT) patients tend to exert too much effort on their vocal cords when speaking and can present with a strained voice, as spasmodic dysphonia. (infodystonia.com)
  • 2. What are the ADductor muscles as related to the vocal folds and how do they function? (directcurrentmusic.com)
  • ADductor muscles pull the vocal folds together for phonation by rotating the arytenoids. (directcurrentmusic.com)
  • Patients with myasthenia gravis (MG) present with painless, specific muscle weakness, and not generalized fatigue. (medscape.com)
  • Myasthenic weakness typically affects the extraocular, bulbar, or proximal limb muscles. (medscape.com)
  • Rarely, patients with severe, generalized weakness may not have associated ocular muscle weakness. (medscape.com)
  • Patients with fluctuating fatigable muscle weakness due to MG will describe weakness of a specific group of muscles that is brought on by activity and which improves with rest. (medscape.com)
  • Maneuvers that fatigue specific muscle groups can be very useful in provoking weakness in patients. (medscape.com)
  • In contrast, patients with generalized fatigue or malaise do not typically display true muscle weakness with provocative maneuvers. (medscape.com)
  • Eye findings are common, with ptosis and extraocular muscle weakness occurring in more than 50% of patients at the time of presentation and in more than 90% of patients sometime during their illness. (medscape.com)
  • Myasthenic weakness of the ocular muscles have been known to mimic CN III, CN IV, and CN VI nerves palsies and, rarely, an internuclear ophthalmoplegia. (medscape.com)
  • Fixed extraocular muscle weakness may occur late in the illness, especially if untreated. (medscape.com)
  • [ 33 ] Weakness of palatal muscles may confer a nasal quality to the voice. (medscape.com)
  • The reason that when we stand up-right is the best for us is because the muscles are at an optimal position because poor posture causes weakness in your muscles. (directcurrentmusic.com)
  • Although the prevalence of muscle weakness in the general population is uncertain, it occurs in about 5% of U.S. adults 60 years and older. (aafp.org)
  • Determining the cause of muscle weakness can be challenging. (aafp.org)
  • True muscle weakness must first be differentiated from subjective fatigue or pain-related motor impairment with normal motor strength. (aafp.org)
  • Muscle weakness should then be graded objectively using a formal tool such as the Medical Research Council Manual Muscle Testing scale. (aafp.org)
  • Given its broad differential diagnosis, muscle weakness can be challenging to evaluate in primary care practice. (aafp.org)
  • 1 Physicians must distinguish true muscle weakness from subjective fatigue or pain-related motor impairment with normal motor strength. (aafp.org)
  • The differential diagnosis of muscle weakness in adults is extensive because it can occur when pathology affects any level of the neuromuscular pathway (upper or lower motor neurons, neuromuscular junction, and muscle fibers). (aafp.org)
  • Table 1 lists selected causes of muscle weakness and their clinical findings. (aafp.org)
  • The endoscope may be angled beneath the arytenoids to visualize the asymmetric angles of closure between the vocal processes in a unilateral lateral cricoarytenoid muscle weakness, one vocal process remaining lateral while the normal side's vocal process hyperextends past midline trying to reach the weakened vocal cord. (voicedoctor.net)
  • There may be muscle weakness, especially in the thighs and upper arms , as well as exaggerated deep tendon reflexes . (osmosis.org)
  • RATIONALE: Profound muscle weakness during and after critical illness is termed intensive care unit-acquired weakness (ICUAW). (bvsalud.org)
  • The Cricothyroid muscles tip the thyroid cartilage towards the cricoid cartilage and lengthen the vocal folds. (directcurrentmusic.com)
  • These provide a cage like structure for the lungs and heart that is able to expand and contract due to the cartilage and muscles that connect to it. (directcurrentmusic.com)
  • When injected, BTX blocks nerve signals to muscles so they relax. (medlineplus.gov)
  • Tumor that is outside the confines of the thyroid gland, and that is invading the soft tissues of the neck, can usually be removed without injury to the neck muscles or recurrent laryngeal nerve needed by the vocal cords. (thyca.org)
  • Laryngeal nerve damage, resulting in a change in the voice quality. (thyca.org)
  • Let's consider a left, partial recurrent laryngeal nerve injury - a common vocal impairment. (voicedoctor.net)
  • However, for the astute examiner, even a mild paresis of the anterior branch of the recurrent laryngeal nerve will also be visible. (voicedoctor.net)
  • In the case of a paresis of the anterior branch of the recurrent laryngeal nerve (thyroarytenoid muscle, lateral cricoarytenoid muscle), most of the audible findings of impairment will be present at low pitch and low volume. (voicedoctor.net)
  • An intact superior laryngeal nerve allows compensation from the cricothyroid muscle, which pulls the vocal cords closer together at higher pitch yielding clearer sound quality. (voicedoctor.net)
  • Nerve: recurrent laryngeal of the vagus CN X. Action: rotates arytenoid cartilages for vocalizations. (tipilandia.es)
  • Nerve: superior laryngeal of the vagus CN X. Action: tenses stretches vocal cords. (tipilandia.es)
  • Posterolateral structures include the anterior scalene muscle with the phrenic nerve, brachial plexus and its branches, vertebral artery, and longus colli muscles. (medscape.com)
  • Therefore, accumulation of glycogen in liver, muscle and nerve cells results in gradual dysfunction of these organs. (labogen.com)
  • On the posterior border of the SCM muscle, level with the laryngeal prominence. (rootdown.us)
  • Adam's Apple ("V" shaped structure in upper neck) is also known as Laryngeal Prominence. (vjtransgenderclinics.com)
  • The recording, using an electrolaryngograph, of the activity of the vocal cords from potentials arising in the laryngeal muscles during phonation and respiration. (wordinfo.info)
  • What is less well known is that the progression of this muscle wasting side effect may lead to a diagnosis of amyotrophic lateral sclerosis (ALS), also called Lou Gehrig's disease or motor neurone disease, described as a chronic, progressive, almost invariably fatal neurological disease. (newmediaexplorer.org)
  • We also confirm that the edges of the intra-pharyngeal ostium have specialised to form the novel, extra-laryngeal velar vocal folds, which are much larger than the true, intra-laryngeal vocal folds in both sexes, but more developed and specialised for low frequency sound production in males than in females. (sussex.ac.uk)
  • Whenever the vocal cords cannot approximate tightly from thyroarytenoid muscle lack of tension or from lack of medial rotation by the lateral cricoarytenoid muscle, the cricothyroid muscle tends to tighten, adding compensatory tension to the vocal cords. (voicedoctor.net)
  • By listening to a lower pitch, the examiner is removing the compensation provided by the cricothyroid muscle and the weak vocal cord will rest in a more lateral position as well as a more concave configuration, allowing more air leak. (voicedoctor.net)
  • [ 14 ] Sensory fibers in the intercostal nerves can affect laryngeal movements, but the responses are complex. (medscape.com)
  • All these muscles are innervated by cervical spinal nerves, and most of these muscles act primarily to move and stabilize the head. (tipilandia.es)
  • Laryngomalacia is the most common cause of stridor and the most common congenital laryngeal anomaly in infants. (scielo.br)
  • Transmission is most likely to occur from patients who have unrecognized pulmonary or laryngeal TB, are not on effective anti-TB therapy, and have not been placed in TB isolation. (cdc.gov)
  • orbicularis oris muscle and buccinator muscle. (scirp.org)
  • Insertion: orbicularis oris muscle at angle of mouth. (tipilandia.es)
  • Doctors treat vocal problems with a variety of therapies, such as laryngeal surgery and collagen injections to thicken thinning vocal cords. (undergroundhealthreporter.com)
  • Knowledge of normal laryngeal anatomy and physiology will help the pharmacist understand the etiology of VCD (Figure 1). (medscape.com)
  • The app includes comprehensive male and female 3D gross anatomy models, select microanatomy of tissues and organs, cadaver slices and diagnostic images that are paired with 3D cross-sections, and interactive animations of muscles and bones. (visiblebody.com)
  • the presence of two small pouches on both sides of median laryngeal recess, and the cuneiform tubercle, which was a mucosal elevation that covered the cuneiform process. (advetresearch.com)
  • This is to ensure the singer does not succumb to using compensatory muscles (which create excess laryngeal pressure) in lieu of nasal resonance. (playbill.com)
  • On each side of the laryngeal opening there is, in the pharynx, a small recess, directed downwards, which presents a wide entrance, but rapidly narrows towards. (co.ma)
  • Furthermore, the studies have shown that there is a connection between's the branchiomeric muscles of vertebrates with the orobranchial muscles inside the pharynx of chordates. (vedantu.com)
  • According to the canine eye specialist who eventually diagnosed my dog, extraocular myositis is caused by an allergic reaction that makes the muscles in the back of the dog's eyes begin to swell. (blogspot.com)
  • Additionally, theoretical studies about some laryngeal diseases are presented and discussed, suggesting that previous and 'virtual' evaluations of surgical interventions will be feasible in the future. (scielo.br)
  • One of the various neck muscles that surround the vertebral column and base of the skull and which are contained in the prevertebral cylinder of deep cervical fascia. (tipilandia.es)
  • [ 32 ] On the other hand, symptoms may remain limited to the extraocular and eyelid muscles for years. (medscape.com)
  • Signs and symptoms of laryngeal cancer include a sore throat and ear pain. (emedicinehealth.com)
  • The dorsal wall of the laryngeal vestibule is narrow, and corresponds to the interval between the upper parts of the two arytenoid cartilages. (co.ma)
  • Laryngeal cartilages, posterior view. (medscape.com)
  • A new concept in laryngeal muscle: multiple myosin isoform types in single muscle fibers of the lateral cricoarytenoid. (unipd.it)
  • Even when the lateral cricoarytenoid muscle remains functional, air leak occurs centrally through the paretic vocal cord, bowed from a lack of tension in the thyroarytenoid muscle as well as from atrophy and lack of mass within the vocal cord. (voicedoctor.net)
  • The epiglottis is the structure that overlies the laryngeal inlet arising from the vallecula (Figure 1). (ispub.com)
  • Using a curved laryngoscope (Macintosh), pressure applied to the vallecula lifts the epiglottis for visualization, utilizing a laryngoscope with a straight blade (Miller), the epiglottis is directly lifted for visualization of the laryngeal inlet. (ispub.com)
  • 1. Describe the action, name, insertion and attachment of the primary muscles of inspiration for singing. (directcurrentmusic.com)
  • The objectives of this study were to determine appropriate acoustic and outcome measures for the evaluation of a method of laryngeal manual therapy (LMT) used in the treatment of patients with muscle tension dysphonia (MTD). (jvoice.org)
  • L'enregistrement a été répété trois jours consécutifs (une condition par jour) en respiration spontanée, AIn (15/4 cmH[indice inférieur 2]O) et NAVAn (15/4 cmH[indice inférieur 2]O) dans un ordre randomisé. (usherbrooke.ca)
  • If the etiology remains unclear, specialist consultation or muscle biopsy may be necessary to reach a diagnosis. (aafp.org)
  • Although the thyroarytenoideus muscle was undivided in the buffalo and camel, the slightly deeper lateral ventricle in camel, allowed the muscle anterior part to be covered with mucous membrane forming the vestibular fold. (advetresearch.com)
  • A vestibuloplasty can only be achieved by relocating or repositioning the muscle attachments and mucous membrane covering it into a deeper or more apical position. (dentaldevotee.com)
  • [ 14 ] The respiratory movements of the vocal cords are coordinated with those of the diaphragm and other muscles of the ventilator pump. (medscape.com)
  • 2] Malmgren LT, Lovice DB, Kaufman MR. Age-related changes in muscle fiber regeneration in the human thyroarytenoid muscle. (unipd.it)
  • Three-dimensional compartmentalization of myosin heavy chain and myosin light chain isoforms in dog thyroarytenoid muscle. (unipd.it)
  • There are not oppressed as women or evidently more at play than is the only major muscles the recurrent laryngeal branch external carotid artery figure 64.1 (a) accessory ureteric bud ureteric bud. (psm.edu)
  • An explanation of this unusual breathing pattern may include the laryngeal regulation of airflow. (cdc.gov)
  • Second, three hyoid muscles have lost their connection to the hyoid skeleton. (sussex.ac.uk)