• this refers to the inner ear structure, not the macula of the retina. (ebi.ac.uk)
  • The macula is the most sensitive part of the retina and is devoid of blood vessels. (thefreedictionary.com)
  • A small area of the retina of approximately 1.5 mm in diameter situated within the macula lutea. (thefreedictionary.com)
  • At the first visit, exudative retinal detachment was observed from the upper retina to the macula of the right eye. (springer.com)
  • The macula edema, macula hole, epiretinal membrane, vitreoretinal composition, RPE and sensorial retina decollements may be examined in-depth and in detail. (koruhastanesi.com)
  • b) sclera- 2) Vascular Tunic a) iris- b) ciliary body- c) choroid- 3) Nervous Tunic a) retina- b) retinal pigment epithelium- Contains photoreceptors (rods and cones) Function- **The macula lutea is located in the center of the retina, composed mostly of cones. (unf.edu)
  • Rods are not in the macula, but rather in the periphery of the retina. (unf.edu)
  • Originally intended primarily for retina specialists to image the macula, it has found its role in other subspecialties that include glaucoma, cornea, and ocular oncology. (biomedsearch.com)
  • Vitreoretinal refers to any operation to treat eye problems involving the retina , macula, and vitreous fluid . (conferenceseries.com)
  • macula sac´culi a thickening on the wall of the saccule where the epithelium contains hair cells that receive and transmit vestibular impulses. (thefreedictionary.com)
  • Its anterior part exhibits an oval thickening, the macula of saccule (or saccular macula), to which are distributed the saccular filaments of the acoustic nerve. (wikipedia.org)
  • The vestibule is a region of the inner ear which contains the saccule and the utricle, each of which contain a macula to detect linear acceleration. (wikipedia.org)
  • The macula of saccule lies in a nearly vertical position. (wikipedia.org)
  • The temporal bone contains the organs for hearing (i.e., organ of Corti) and the detection of gravity, linear and rotational motion (i.e., maculae of the utricule and saccule, cristae of the superior, lateral and posterior semicircular canals). (cdc.gov)
  • The end organs for gravity and motion detection consist of five separate sensory organs: the macula of the utricule (pp 47 and 50) and macula of the saccule, both housed in the vestibule and three cristae, one in the ampullated end of the superior, lateral (or horizontal) and posterior semicircular canals (pp 48-50). (cdc.gov)
  • Since both the vestibular organs (such as the saccule) and the auditory components (such as the cochlea) are located near the stapes, acoustic stimuli may trigger acoustic-motor responses by stimulating each of these regions. (vestibulology.com)
  • The neurosensory structures involved in hearing and equilibrium are located in the membranous labyrinth: the organ of Corti is located in the cochlear canal, while the maculae of the utricle and the saccule and the ampullae of the semicircular canals are located in the posterior section. (iloencyclopaedia.org)
  • [2] The corresponding tissue within the utricle and saccule is known as the macula and is located on the floor and medial wall of each organ, respectively. (physio-pedia.com)
  • A gelatinous membrane surmounting the acoustic maculae of the saccule and utricle and containing minute calciferous granules, known as otoconia , otoliths , or statoconia. (medical-dictionary.cc)
  • macula utri´culi a thickening in the wall of the utricle where the epithelium contains hair cells that are stimulated by linear acceleration and deceleration and by gravity. (thefreedictionary.com)
  • The macula of the utricle is in a horizontal position and detects horizontal acceleration. (wikipedia.org)
  • acoustic maculae ( ma´culae acus´ticae ) the macula sacculi and macula utriculi considered together. (thefreedictionary.com)
  • Immunohistochemical localization and mRNA expression of aquaporins in the macula utriculi of patients with Meniere's disease and acoustic neuroma. (abcam.com)
  • The otolithic membrane of the macula utriculi briefly lags behind the rest of the tissues, bends the stereocilia backward, and stimulates the cells. (wikipedia.org)
  • Disease entities of the inner ear include: congenital malformations, loss of sensory cells and nerve fibers (i.e., sensorineural hearing loss), cochlear otosclerosis, Meniere's disease, acoustic neuroma, or sudden hearing loss. (cdc.gov)
  • 1-E The acoustic neuroma (acoustic schwannoma), which represents 8% of primary intracranial neoplasma, is found in the cerebellopontine (CP) angle. (brainscape.com)
  • Also a lady on the hughs syndrome community who is on plaquenil has just been diagnosed with an acoustic neuroma, the is under the post a serious cautionary tale all about serious side effects to plaquenil. (healthunlocked.com)
  • I have never seen a case of acoustic neuroma caused by Plaquenil. (healthunlocked.com)
  • Although the pathophysiological process of the disease has not been fully clarified, currently, the widely accepted opinion is that the disease results from the accumulation of otoconia that are detached from the utricular macula in the semicircular canals and thereby sensitizing such canals to gravity (1). (thefreedictionary.com)
  • It represents clusters of small foramina that permit the passage of vestibular nerve fibers from the internal acoustic foramen into the vestibule. (radiopaedia.org)
  • Nerve fibers enter the maculae from beneath the epithelium to innervate the hair cells. (cdc.gov)
  • However, iodine stained samples of cichlids [ 5 ] did not provide a sufficient contrast to discriminate otolith, otolithic membrane, maculae, and innervating nerve fibers of the VIII th cranial nerve. (biomedcentral.com)
  • As a receptor of the auditory system, the cochlea transforms the acoustic energy of sound waves into energy stimulating the nerve fibers. (thefreedictionary.com)
  • The descending branches of those same nerve fibers make contact as pericellular nests of boutons terminaux or boutons en passage neurons of different classes within PVCN and DCN, and here the transformations are quite different from those in AVCN. (scribd.com)
  • When you stop at the next light, the macula stops but the otolithic membrane keeps going for a moment, bending the stereocilia forward. (wikipedia.org)
  • it receives the utricular filaments of the acoustic nerve . (wikipedia.org)
  • According to the widely accepted theory (canalithiasis), otoconia dislodged from the utricular or saccular macula subsequently move into the semicircular canal (SCC) and cause an endolymph displacement that stimulates the cupula of the SCC (4). (thefreedictionary.com)
  • BPPV is caused by free otoconia dislodged from the utricular macula that have entered the semicircular canal, where they provoke an inappropriate flow of endolymph whenever the head is rotated in the plane of the affected canal [15]. (thefreedictionary.com)
  • In each of the end organs, the sensory epithelium (macula) is overlain by a massive calcium carbonate biomineralisate, the otolith. (biomedcentral.com)
  • The macula cribrosa is part of the vestibule of the inner ear , located medially between it and the lateral most part of the internal acoustic meatus . (radiopaedia.org)
  • The acoustic stimuli activate the saccular macula, the vestibular inferior nerve and the pathways related to the vestibule-spinal descendant nerves. (bvsalud.org)
  • It is believed that the macula of the lagena takes part in the functioning of the vestibule and that the macula is sensitive to low-frequency vibrations and sounds. (thefreedictionary.com)
  • Her diabetic retinopathy has progressed significantly and there is non-macula retinal oedema present. (centreforeyehealth.com.au)
  • By presenting high-intensity acoustic stimuli to the ear, a set of reflexes are activated. (vestibulology.com)
  • The basilar membrane forms the inferior surface of the cochlear canal, and supports the organ of Corti, responsible for the transduction of acoustic stimuli. (iloencyclopaedia.org)
  • The origin of cVEMP is thought to be the ipsilateral saccular macula, and the responsible neural pathway passes through the inferior vestibular nerve to the vestibular nuclei, which includes the afferent limb of the sacculocollic reflex. (thefreelibrary.com)
  • The full visual acuity is possible only by the use of the centre of the macula-the fovea. (thefreedictionary.com)
  • The upper part of the vestibular nerve innervates the anterior part of the saccular macula, but the lower part innervates the posterior part. (vestibulology.com)
  • This response is recorded as a change in the activity of the SCM muscle after stimulation of the vestibular system with acoustic signals of approximately 90 dB HL and greater. (vestibulology.com)
  • Section of the facial and acoustic nerves within internal acoustic meatus (the separation between them is not apparent in the section). (wikidoc.org)
  • The sacculus of some fishes has only one sensory patch, or macula. (thefreedictionary.com)
  • Most fishes, with the exception of those of the order Chimaeriformes, have a special organ of hearing in the sacculus-the lagena with a macula distinct from the original acoustic macula. (thefreedictionary.com)
  • Pseudophakic RDs either progress rapidly due to continuous vitreous traction or had already progressed to involving the macula at their presentation. (aao.org)
  • Our results indicate that reliable 3D reconstructions of inner ears including otoliths and maculae can be obtained by using high-resolution microCT imaging of specimens stained with phosphotungstic acid. (biomedcentral.com)
  • Structural measurements that are clinically relevant to glaucoma diagnosis include thickness of the peripapillary retinal nerve fiber layer (RNFL), 2 , 3 characteristics of the optic nerve head (ONH), such as cup to disc ratio and neural rim area, 2 , 4 and thickness of the inner layers of the macula. (arvojournals.org)
  • Immediately after exposure, damage was observed in the macula statica princeps and on the crista sensory epithelia. (windturbinesyndrome.com)
  • While a number of studies have illustrated and analyzed 3D models of inner ears in higher vertebrates, inner ears in fishes have rarely been investigated in 3D, especially with regard to the sensory epithelia of the end organs, the maculae. (biomedcentral.com)
  • Unlike mammals, teleost fishes are capable of regenerating sensory inner ear hair cells that have been lost following acoustic or ototoxic trauma. (biomedcentral.com)
  • It has been suggested that the 3D curvature of these maculae may also play an important role in hearing abilities in fishes. (biomedcentral.com)
  • Future studies investigating functional morphology, phylogenetic potential of inner ear features, or evolution of hearing and inner ear specialization in fishes may benefit from the use of 3D models of inner ears and maculae. (biomedcentral.com)
  • The aim of our study therefore was to establish a fast and more reliable method to three-dimensionally reconstruct whole inner ears of fishes with special focus on the reconstruction of the 3D curvature of maculae. (biomedcentral.com)
  • It is commonly juxtapapillary or peripapillary, but may extend to the macula. (aao.org)
  • There are also connections between the principal auditory centers and the cranial and spinal motor nuclei, which subserve acoustic reflexes, but little is known about them. (scribd.com)
  • The auditory places similarly invigilate to form the inner ear labyrinth, whose neurons form the acoustic ganglion , which enables us to hear. (conferenceseries.com)
  • Embrace the anatomical abnormality in the macula: there may be in emergencies. (thenectarystpaul.com)
  • We compared the accuracy of axial length (AL) measurement obtained by optical biometry with that obtained by acoustic biometry in eyes with rhegmatogenous retinal detachment (RRD). (dovepress.com)
  • If the relatively low levels and short exposure applied in this study can induce severe acoustic trauma in cephalopods, the effects of similar noise sources [such as wind turbine arrays] on these species in natural conditions over longer time periods may be considerable. (windturbinesyndrome.com)
  • Additionally, we investigated the effect of growth hormone (GH) on cell proliferation in control zebrafish utricles and saccules, since GH was significantly up-regulated following acoustic trauma. (biomedcentral.com)
  • The high resolution and in-depth imaging enables to detect and follow the macula diseases in quantitative templates. (koruhastanesi.com)
  • Pattern dystrophy of the macula- In a study on 22 confirmed cases of PXE, pattern dystrophy was noted in 27 eyes of 16 patients. (statpearls.com)
  • A pathological response consisting of fluid accumulation in the outer plexiform layer of the central macula that results in the formation of visible cystic spaces. (wordpress.com)
  • An instrument which employs acoustic radiation at microwave frequencies to allow visualization of the microscopic detail exhibited in elastic properties of an object. (thefreedictionary.com)
  • Acoustic analysis and subsequent generations of couples with the excesses of presentation or grey-scale ultrasound use of possible to clinical research in the biliary decompression uses available at re-operation. (thenectarystpaul.com)
  • e a Tofsims system (IonTOF) with build-in Scanning Probe stage and FIB column for true 3D-composition profiling, a completely automated micro-Hall and sheet resistance measurement tool (Capres) with additional capabilities for measurements on dedicated test structures (prior to full BEOL) and an GHz acoustic Microscope (Tepla) for probing voids in TSVs and stacked dies. (thefreedictionary.com)
  • How is Acoustic Measurement System abbreviated? (thefreedictionary.com)
  • Instead, micro burst, acoustic shock waves and photo vaporization to the cellular matrix of the tissue targeted by the laser create micro cavities (perforations) that have a similar effect as one would see on tear-off paper. (lahayesight.com)
  • In the process, an acoustic shock wave is generated, which literally tears the tissue apart. (monocrom.com)
  • Maculae are characterized by orientation patterns of ciliary bundles of the sensory hair cells, i.e. the morphologically and physiologically polarized ciliary bundles form differently oriented groups on the macula. (biomedcentral.com)
  • 2 ]). These reconstructions based on histological serial sections were labor-intensive and results were in part uneven as maculae were prone to distortion or artifacts such as disruption during dehydration or embedding procedures. (biomedcentral.com)
  • Cessation of the prostaglandin on August 19, 2014 resulted in partial return of acoustic function. (journalofasianhealth.com)