Ear, Inner
Embryology
Labyrinth Diseases
Cochlea
Ear
Characterization of an amphioxus paired box gene, AmphiPax2/5/8: developmental expression patterns in optic support cells, nephridium, thyroid-like structures and pharyngeal gill slits, but not in the midbrain-hindbrain boundary region. (1/904)
On the basis of developmental gene expression, the vertebrate central nervous system comprises: a forebrain plus anterior midbrain, a midbrain-hindbrain boundary region (MHB) having organizer properties, and a rhombospinal domain. The vertebrate MHB is characterized by position, by organizer properties and by being the early site of action of Wnt1 and engrailed genes, and of genes of the Pax2/5/8 subfamily. Wada and others (Wada, H., Saiga, H., Satoh, N. and Holland, P. W. H. (1998) Development 125, 1113-1122) suggested that ascidian tunicates have a vertebrate-like MHB on the basis of ascidian Pax258 expression there. In another invertebrate chordate, amphioxus, comparable gene expression evidence for a vertebrate-like MHB is lacking. We, therefore, isolated and characterized AmphiPax2/5/8, the sole member of this subfamily in amphioxus. AmphiPax2/5/8 is initially expressed well back in the rhombospinal domain and not where a MHB would be expected. In contrast, most of the other expression domains of AmphiPax2/5/8 correspond to expression domains of vertebrate Pax2, Pax5 and Pax8 in structures that are probably homologous - support cells of the eye, nephridium, thyroid-like structures and pharyngeal gill slits; although AmphiPax2/5/8 is not transcribed in any structures that could be interpreted as homologues of vertebrate otic placodes or otic vesicles. In sum, the developmental expression of AmphiPax2/5/8 indicates that the amphioxus central nervous system lacks a MHB resembling the vertebrate isthmic region. Additional gene expression data for the developing ascidian and amphioxus nervous systems would help determine whether a MHB is a basal chordate character secondarily lost in amphioxus. The alternative is that the MHB is a vertebrate innovation. (+info)N,N'-Diacetyl-L-cystine-the disulfide dimer of N-acetylcysteine-is a potent modulator of contact sensitivity/delayed type hypersensitivity reactions in rodents. (2/904)
Oral N-acetyl-L-cysteine (NAC) is used clinically for treatment of chronic obstructive pulmonary disease. NAC is easily oxidized to its disulfide. We show here that N,N'-diacetyl-L-cystine (DiNAC) is a potent modulator of contact sensitivity (CS)/delayed type hypersensitivity (DTH) reactions in rodents. Oral treatment of BALB/c mice with 0.003 to 30 micromol/kg DiNAC leads to enhancement of a CS reaction to oxazolone; DiNAC is 100 to 1000 times more potent than NAC in this respect, indicating that it does not act as a prodrug of NAC. Structure-activity studies suggest that a stereochemically-defined disulfide element is needed for activity. The DiNAC-induced enhancement of the CS reaction is counteracted by simultaneous NAC-treatment; in contrast, the CS reaction is even more enhanced in animals treated with DiNAC together with the glutathione-depleting agent buthionine sulfoximine. These data suggest that DiNAC acts via redox processes. Immunohistochemically, ear specimens from oxazolone-sensitized and -challenged BALB/c mice treated with DiNAC display increased numbers of CD8(+) cells. DiNAC treatment augments the CS reaction also when fluorescein isothiocyanate is used as a sensitizer in BALB/c mice; this is a purported TH2 type of response. However, when dinitrofluorobenzene is used as a sensitizer, inducing a purported TH1 type of response, DiNAC treatment reduces the reaction. Treatment with DiNAC also reduces a DTH footpad-swelling reaction to methylated BSA. Collectively, these data indicate that DiNAC in vivo acts as a potent and effective immunomodulator that can either enhance or reduce the CS or DTH response depending on the experimental conditions. (+info)Effects of chronic administration of kanamycin on conditioned suppression to auditory stimulus in rats. (3/904)
The conditioned suppression technique was employed to study the ototoxic effects of chronic administration of the antibiotic, kanamycin. Lever pressing behavior for food reinforcement of rats was suppressed in the presence of an auditory stimulus (sound) or visual stimulus (light) that had been previously paired with electric shocks. Repeated administration of kanamycin at the dose of 400 mg/kg/day for more than 50 days significantly attenuated the conditioned suppression to auditory stimulus but did not attenuate the conditioned suppression to visual stimulus. This finding suggests that the attenuating effect of chronic administration of kanamycin on conditioned suppression to auditory stimulus can be interpreted in terms of the selective action of the drug on the auditory system. (+info)Modulation of acute and chronic inflammatory processes by cacospongionolide B, a novel inhibitor of human synovial phospholipase A2. (4/904)
1. Cacospongionolide B is a novel marine metabolite isolated from the sponge Fasciospongia cavernosa. In in vitro studies, this compound inhibited phospholipase A2 (PLA2), showing selectivity for secretory PLA2 (sPLA2) versus cytosolic PLA2 (cPLA2), and its potency on the human synovial enzyme (group II) was similar to that of manoalide. 2. This activity was confirmed in vivo in the 8 h zymosan-injected rat air pouch, on the secretory enzyme accumulating in the pouch exudate. Cacospongionolide B, that is bioavailable when is given orally, reduced the elevated levels of sPLA2 present in paw homogenates of rats with adjuvant arthritis. 3. This marine metabolite showed topical anti-inflammatory activity on the mouse ear oedema induced by 12-O-tetradecanoylphorbol acetate (TPA) and decreased carrageenin paw oedema in mice after oral administration of 5, 10 or 20 mg kg(-1). 4. In the mouse air pouch injected with zymosan, cacospongionolide B administered into the pouch, induced a dose-dependent reduction in the levels of eicosanoids and tumour necrosis factor alpha (TNFalpha) in the exudates 4 h after the stimulus. It also had a weak effect on cell migration. 5. The inflammatory response of adjuvant arthritis was reduced by cacospongionolide B, which did not significantly affect eicosanoid levels in serum, paw or stomach homogenates and did not induce toxic effects. 6 Cacospongionolide B is a new inhibitor of sPLA2 in vitro and in vivo, with anti-inflammatory properties in acute and chronic inflammation. This marine metabolite was active after oral administration and able to modify TNFalpha levels, and may offer an interesting approach in the search for new anti-inflammatory agents. (+info)Differential transcriptional control as the major molecular event in generating Otx1-/- and Otx2-/- divergent phenotypes. (5/904)
Otx1 and Otx2, two murine homologs of the Drosophila orthodenticle (otd) gene, show a limited amino acid sequence divergence. Their embryonic expression patterns overlap in spatial and temporal profiles with two major exceptions: until 8 days post coitum (d.p.c. ) only Otx2 is expressed in gastrulating embryos, and from 11 d.p.c. onwards only Otx1 is transcribed within the dorsal telencephalon. Otx1 null mice exhibit spontaneous epileptic seizures and multiple abnormalities affecting primarily the dorsal telencephalic cortex and components of the acoustic and visual sense organs. Otx2 null mice show heavy gastrulation abnormalities and lack the rostral neuroectoderm corresponding to the forebrain, midbrain and rostral hindbrain. In order to define whether these contrasting phenotypes reflect differences in expression pattern or coding sequence of Otx1 and Otx2 genes, we replaced Otx1 with a human Otx2 (hOtx2) full-coding cDNA. Interestingly, homozygous mutant mice (hOtx2(1)/hOtx2(1)) fully rescued epilepsy and corticogenesis abnormalities and showed a significant improvement of mesencephalon, cerebellum, eye and lachrymal gland defects. In contrast, the lateral semicircular canal of the inner ear was never recovered, strongly supporting an Otx1-specific requirement for the specification of this structure. These data indicate an extended functional homology between OTX1 and OTX2 proteins and provide evidence that, with the exception of the inner ear, in Otx1 and Otx2 null mice contrasting phenotypes stem from differences in expression patterns rather than in amino acid sequences. (+info)Contact hypersensitivity: a simple model for the characterization of disease-site targeting by liposomes. (6/904)
A murine model of delayed-type hypersensitivity (DTH) is characterized with respect to liposome accumulation at a site of inflammation. Mice were sensitized by painting the abdominal region with a solution of 2,4-dinitrofluorobenzene (DNFB) and inflammation was induced 5 days later by challenging the ear with a dilute solution of DNFB. The inflammatory response was readily monitored by measuring ear thickness (edema) and radiolabeled leukocyte infiltration. Maximum ear swelling and cellular infiltration occurred 24 h after the epicutaneous challenge with the ear returning to normal size after approximately 72 h. We demonstrate that large unilamellar vesicles (LUV) accumulate at the site of inflammation to a level more than 20-fold higher than that measured in the untreated ear. Vesicle delivery to the ear correlated with increased vascular leakage resulting from endothelium remodeling in response to DNFB challenge, and was not a consequence of increased local tissue blood volume. Extravasation occurred only during the first 24 h after ear challenge; after this time the permeability of the endothelium to vesicles returned to normal. We further showed that LUV with a diameter of 120 nm exhibit maximum levels of accumulation, that a polyethylene glycol surface coating does not increase delivery, and that the process can be inhibited by the application of topical corticosteroids at the time of induction. These data and the inflammation model are discussed with respect to developing lipid-based drug delivery vehicles designed to accumulate at inflammatory disease sites. (+info)Effects of vasopressin on the sympathetic contraction of rabbit ear artery during cooling. (7/904)
In order to analyse the effects of arginine-vasopressin on the vascular contraction to sympathetic nerve stimulation during cooling, the isometric response of isolated, 2-mm segments of the rabbit central ear (cutaneous) artery to electrical field stimulation (1-8 Hz) was recorded at 37 and 30 degrees C. Electrical stimulation (37 degrees C) produced frequency-dependent arterial contraction, which was reduced at 30 degrees C and potentiated by vasopressin (10 pM, 100 pM and 1 nM). This potentiation was greater at 30 than at 37 degrees C and was abolished at both temperatures by the antagonist of vasopressin V1 receptors d(CH2)5 Tyr(Me)AVP (100 nM). Desmopressin (1 microM) did not affect the response to electrical stimulation. At 37 degrees C, the vasopressin-induced potentiation was abolished by the purinoceptor antagonist PPADS (30 microM), increased by phentolamine (1 microM) or prazosin (1 microM) and not modified by yohimbine (1 microM), whilst at 30 degrees C, the potentiation was reduced by phentolamine, yohimbine or PPADS, and was not modified by prazosin. The Ca2+-channel blockers, verapamil (10 microM) and NiCl2 (1 mM), abolished the potentiating effects of vasopressin at 37 degrees C whilst verapamil reduced and NiCl2 abolished this potentiation at 30 degrees C. The inhibitor of nitric oxide synthesis, L-NOARG (100 microM), or endothelium removal did not modify the potentiation by vasopressin at 37 and 30 degrees C. Vasopressin also increased the arterial contraction to the alpha2-adrenoceptor agonist BHT-920 (10 microM) and to ATP (2 mM) at 30 and 37 degrees C, but it did not modify the contraction to noradrenaline (1 microM) at either temperature. These results suggest that in cutaneous (ear) arteries, vasopressin potentiaties sympathetic vasoconstriction to a greater extent at 30 than at 37 degrees C by activating vasopressin V1 receptors and Ca2+ channels at both temperatures. At 37 degrees C, the potentiation appears related to activation of the purinoceptor component and, at 30 degrees C, to activation of both purinoceptor and alpha2-adrenoceptor components of the sympathetic response. (+info)A man with a prosthetic ear and multiple pulmonary nodules. (8/904)
Basal cell carcinoma is generally regarded as a relatively indolent tumor easily controlled with local therapy. When neglected or inadequately treated this tumor can become locally aggressive and in rare circumstances metastasize. This report documents a case of basal cell carcinoma metastatic to the lung that resulted in rapidly progressive respiratory failure and death. (+info)Labyrinthitis is a medical condition characterized by inflammation of the labyrinth, which is the inner ear's balance- and hearing-sensitive system. It is often caused by an infection, such as a viral or bacterial infection, that spreads to the inner ear. The inflammation can affect the delicate structures of the labyrinth, leading to symptoms such as vertigo (a spinning sensation), dizziness, imbalance, hearing loss, and tinnitus (ringing in the ears). Labyrinthitis can be a serious condition that requires medical attention and treatment.
The inner ear is the innermost part of the ear that contains the sensory organs for hearing and balance. It consists of a complex system of fluid-filled tubes and sacs called the vestibular system, which is responsible for maintaining balance and spatial orientation, and the cochlea, a spiral-shaped organ that converts sound vibrations into electrical signals that are sent to the brain.
The inner ear is located deep within the temporal bone of the skull and is protected by a bony labyrinth. The vestibular system includes the semicircular canals, which detect rotational movements of the head, and the otolith organs (the saccule and utricle), which detect linear acceleration and gravity.
Damage to the inner ear can result in hearing loss, tinnitus (ringing in the ears), vertigo (a spinning sensation), and balance problems.
Embryology is the branch of biology that deals with the formation, growth, and development of an embryo. It is a scientific study that focuses on the structural and functional changes that occur during the development of a fertilized egg or zygote into a mature organism. Embryologists study the various stages of embryonic development, including gametogenesis (the formation of sperm and eggs), fertilization, cleavage, gastrulation, neurulation, and organogenesis. They also investigate the genetic and environmental factors that influence embryonic development and may use this information to understand and prevent birth defects and other developmental abnormalities.
Anatomy is the branch of biology that deals with the study of the structure of organisms and their parts. In medicine, anatomy is the detailed study of the structures of the human body and its organs. It can be divided into several subfields, including:
1. Gross anatomy: Also known as macroscopic anatomy, this is the study of the larger structures of the body, such as the organs and organ systems, using techniques such as dissection and observation.
2. Histology: This is the study of tissues at the microscopic level, including their structure, composition, and function.
3. Embryology: This is the study of the development of the embryo and fetus from conception to birth.
4. Neuroanatomy: This is the study of the structure and organization of the nervous system, including the brain and spinal cord.
5. Comparative anatomy: This is the study of the structures of different species and how they have evolved over time.
Anatomy is a fundamental subject in medical education, as it provides the basis for understanding the function of the human body and the underlying causes of disease.
Labyrinth diseases refer to conditions that affect the inner ear's labyrinth, which is the complex system of fluid-filled channels and sacs responsible for maintaining balance and hearing. These diseases can cause symptoms such as vertigo (a spinning sensation), dizziness, nausea, hearing loss, and tinnitus (ringing in the ears). Examples of labyrinth diseases include Meniere's disease, labyrinthitis, vestibular neuronitis, and benign paroxysmal positional vertigo. Treatment for these conditions varies depending on the specific diagnosis but may include medications, physical therapy, or surgery.
The cochlea is a part of the inner ear that is responsible for hearing. It is a spiral-shaped structure that looks like a snail shell and is filled with fluid. The cochlea contains hair cells, which are specialized sensory cells that convert sound vibrations into electrical signals that are sent to the brain.
The cochlea has three main parts: the vestibular canal, the tympanic canal, and the cochlear duct. Sound waves enter the inner ear and cause the fluid in the cochlea to move, which in turn causes the hair cells to bend. This bending motion stimulates the hair cells to generate electrical signals that are sent to the brain via the auditory nerve.
The brain then interprets these signals as sound, allowing us to hear and understand speech, music, and other sounds in our environment. Damage to the hair cells or other structures in the cochlea can lead to hearing loss or deafness.
The ear is the sensory organ responsible for hearing and maintaining balance. It can be divided into three parts: the outer ear, middle ear, and inner ear. The outer ear consists of the pinna (the visible part of the ear) and the external auditory canal, which directs sound waves toward the eardrum. The middle ear contains three small bones called ossicles that transmit sound vibrations from the eardrum to the inner ear. The inner ear contains the cochlea, a spiral-shaped organ responsible for converting sound vibrations into electrical signals that are sent to the brain, and the vestibular system, which is responsible for maintaining balance.
Ear
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Ear Candy
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Ear eczema
Ear-Resistible
Utricle (ear)
Bat ear
Ear hair
Ear protection
Wood ear
Gazzillion Ear
Ear-EEG
Ear pull
Ear Hustle
Ear mite
Middle ear
Ear (botany)
EAR (band)
Ear canal
Cat's ear
Outer ear
Ear Mountain
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Golden ear
Ear decomposition
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Ear trumpet
Ear Magazine
Ear Seeds Products, Charts & Kits | FDA Registered
Ear Infections - Multiple Languages: MedlinePlus
CDC Online Newsroom - Press Release: May 19, 2011 (Swimmer's Ear)
Inner Ear Anatomy: Gross Anatomy, Embryology, Labyrinthitis
A Novel Approach to the Remote Management of Glue Ear
Ear Falls Water Aerodrome - Wikipedia
Inner ear decompression sickness - Wikipedia
Ear Tags (for Parents) - Nemours KidsHealth
Deer's-ear Definition & Meaning - Merriam-Webster
In-Ear Monitors
BBC News - Tiny ear listens to hidden worlds
Ear Infection Treatments, Antibiotics, & Medications
TAGS: ear | The Smoking Gun
The New American Bible - IntraText Concordances: «ear»
Swimmer's Ear | Johns Hopkins Medicine
Ear - Wikipedia
In-Ear Bioelectronic May Replace Leading Brain-Computer Implants
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Cosmetic Ear Surgery
Ear clip Definition & Meaning - Merriam-Webster
Ear eczema: Symptoms, causes, and treatment
Chronic ear infection: Symptoms, causes, treatment, and prevention
Syndromic ear anomalies and renal ultrasounds
Cauliflower ear - Wikipedia
Mickey Ears | POPSUGAR
Nano-Ear Archives | PlanetSave
Ear Deformities | Duke Health
Stazko Ear Cleaner 8oz
Eardrum9
- With fluid in the middle ear, the eardrum is more rigid and doesn't move back and forth. (webmd.com)
- The ear canal of the outer ear is separated from the air-filled tympanic cavity of the middle ear by the eardrum. (wikipedia.org)
- The outer ear is the external portion of the ear and includes the fleshy visible pinna (also called the auricle), the ear canal, and the outer layer of the eardrum (also called the tympanic membrane). (wikipedia.org)
- The ear canal ends at the external surface of the eardrum. (wikipedia.org)
- The ossicles are three small bones that function together to receive, amplify, and transmit the sound from the eardrum to the inner ear. (wikipedia.org)
- The ear canal is a tube that goes from the opening of the ear to the eardrum. (hopkinsmedicine.org)
- But swimmer's ear happens when bacteria grow in the ear canal, which is a passageway to the eardrum . (kidshealth.org)
- The middle ear is a small space behind your eardrum. (webmd.com)
- If a doctor looks at your child's eardrum and sees that it's red and bulging, they'll diagnose them with an ear infection. (webmd.com)
Canal37
- Swimmer's ear can develop when water stays in the ear canal for a long time, allowing germs to grow and infect the skin. (cdc.gov)
- The outer ear consists of the pinna and the ear canal. (wikipedia.org)
- The pinna consists of the curving outer rim called the helix, the inner curved rim called the antihelix, and opens into the ear canal. (wikipedia.org)
- The tragus protrudes and partially obscures the ear canal, as does the facing antitragus. (wikipedia.org)
- The hollow region in front of the ear canal is called the concha. (wikipedia.org)
- The ear canal stretches for about 1 inch (2.5 cm). (wikipedia.org)
- The skin surrounding the ear canal contains ceruminous and sebaceous glands that produce protective ear wax. (wikipedia.org)
- Eczema can appear anywhere on the body, including the outside of the ear or inside the ear canal. (medicalnewstoday.com)
- Swimmer's ear (otitis externa) is a redness or swelling (inflammation), irritation, or infection of your outer ear canal. (hopkinsmedicine.org)
- When water stays in your ear canal, germs can grow. (hopkinsmedicine.org)
- A cotton swab is placed gently in your ear canal to get a sample. (hopkinsmedicine.org)
- Hearing loss from a swollen and inflamed ear canal. (hopkinsmedicine.org)
- Don't scratch or clean your ear canal with cotton swabs, your fingers, or other objects. (hopkinsmedicine.org)
- It is a redness or swelling (inflammation), irritation, or infection of the outer ear canal. (hopkinsmedicine.org)
- The layers include electrothermal components, wiring, adhesion, and so on, all packed together in a memory polymer that molds to the ear canal of the user, maximizing comfort and stability. (forbes.com)
- FIGURE 1: Pictures of SpiralE conformally adapting to the inner wall of the ear canal. (forbes.com)
- The spiral design allows for an unobstructed ear canal, and auditory tests run by Dr. Wang and colleagues confirm that not only does the user continue to hear unobstructed at cocktail party noise levels, but the device itself continues to function with 84% accuracy in high volume environments. (forbes.com)
- Swimmer's ear is an infection of the ear canal . (kidshealth.org)
- If you stick your finger in your ear, you're feeling a little of the ear canal. (kidshealth.org)
- Most of the time, water can run in and out of the ear canal without causing a problem. (kidshealth.org)
- Bacteria get a chance to grow when water stays in the ear canal. (kidshealth.org)
- Bacteria grow and the ear canal gets red and swollen. (kidshealth.org)
- Sometimes kids can get an infection in the ear canal even if they haven't been swimming. (kidshealth.org)
- A scratch or other irritation to the ear canal can also lead to swimmer's ear. (kidshealth.org)
- The infection also could make it harder to hear with the infected ear because of the swelling that happens in the ear canal. (kidshealth.org)
- The medicine goes into the sponge and it keeps the medicine touching the ear canal that's infected. (kidshealth.org)
- The external ear canal may be atretic (absent). (cdc.gov)
- The spectrum of severity in microtia ranges from a measurably small external ear (defined as longitudinal ear length below minus two SD from the mean, or approximately 3.3 cm in the term newborn) with minimal structural abnormality, to an ear that consists of few rudimentary structures and an absent or blind-ending external ear canal. (cdc.gov)
- Severity - I-IV degree, based on the extent of external ear involvement and atresia of the external canal. (cdc.gov)
- Specially formulated to clean, reduce inflammation, and provide instant relief to the ear canal. (petedge.com)
- Dries moisture in the ear canal, and will not irritate or burn the ear. (petedge.com)
- Sound waves are funneled through the external ear and piped into the external auditory canal, according to Nebraska Medicine . (livescience.com)
- The auditory canal is the part of the ear hole that can easily be seen when looking at an ear up-close. (livescience.com)
- For the purpose of local anesthesia, this article focuses on the external ear which comprises the auricle, or pinna, and the ear canal. (medscape.com)
- The ring block, shown in the image below, provides anesthesia to the entire ear, excluding the concha and external auditory canal. (medscape.com)
- 10 count What the Ear Process does: Our bodies produce earwax cerumen near the entrance to the ear canal in order to protect the inner ear from dust, debris and particulate. (shoprite.com)
- This wax is then migrated out of the ear canal by a body process. (shoprite.com)
Inner ear18
- In mammals, the anatomy of the inner ear consists of the bony labyrinth, a system of passages making up the following 2 main functional parts: (1) the cochlea, which is dedicated to hearing, and (2) the vestibular system, which is dedicated to balance. (medscape.com)
- The inner ear is innervated by the eighth cranial nerve in all vertebrates. (medscape.com)
- Inner ear, coronal section. (medscape.com)
- The superficial contours of the inner ear are established by a layer of dense bone known as the bony labyrinth, which refers to the network of canals. (medscape.com)
- During week 4 of embryonic development, the human inner ear develops from the auditory placode, a thickening of the ectoderm that gives rise to the bipolar neurons of the cochlear and vestibular ganglions. (medscape.com)
- Inner ear decompression sickness , (IEDCS) or audiovestibular decompression sickness is a medical condition of the inner ear caused by the formation of gas bubbles in the tissues or blood vessels of the inner ear. (wikipedia.org)
- In mammals the ear is usually described as having three parts: the outer ear, the middle ear and the inner ear. (wikipedia.org)
- The human ear consists of three parts-the outer ear, middle ear and inner ear. (wikipedia.org)
- The inner ear contains the otolith organs-the utricle and saccule-and the semicircular canals belonging to the vestibular system, as well as the cochlea of the auditory system. (wikipedia.org)
- The middle ear lies between the outer ear and the inner ear. (wikipedia.org)
- The three ossicles transmit sound from the outer ear to the inner ear. (wikipedia.org)
- However, abnormalities of the middle and inner ear, commonly associated with the more severe degrees of microtia, should be sought, and typically require advanced imaging (CT or MRI scan), surgery, or autopsy. (cdc.gov)
- The ear has three main parts: external ear, middle ear and inner ear. (livescience.com)
- This action is passed on to the inner ear and the cochlea, a fluid-filled, spiral-shaped structure that contains the spiral organ of Corti, which is the receptor organ for hearing. (livescience.com)
- The vestibular complex, in the inner ear, is also important to balance because it contains receptors that regulate a sense of equilibrium. (livescience.com)
- The inner ear is connected to the vestibulocochlear nerve, which carries sound and equilibrium information to the brain. (livescience.com)
- The ear is composed of 3 compartments: the external ear, the middle ear, and the inner ear. (medscape.com)
- Only Lipo-Flavonoid contains the exclusive Tisina complex, a proprietary blend of high potency ingredients, clinically shown to be important to functionality of the inner ear. (shoprite.com)
Swimmer's ear30
- Swimmer's ear leads to about 2.4 million doctor visits each year and is responsible for nearly $500 million dollars in annual health care costs, according to estimates released by CDC on Thursday. (cdc.gov)
- Exposure to water-through swimming, bathing and other activities-and living in warm and humid climates increase the risk of developing swimmer's ear. (cdc.gov)
- Germs found in pools and at other recreational water venues are one of the most common causes of swimmer's ear. (cdc.gov)
- Most cases of swimmer's ear can be easily treated with prescription antimicrobial ear drops. (cdc.gov)
- In 2007, 1 in 123 Americans went to the doctor for swimmer's ear. (cdc.gov)
- Between 2003 and 2007, rates of doctor's visits for swimmer's ear were highest in children between the ages of 5 and 14 years. (cdc.gov)
- People living in the South had the highest regional rate of swimmer's ear. (cdc.gov)
- To estimate the costs associated with swimmer's ear, CDC scientists used a large proprietary database that contains health care claims for millions of people who have employer-provided health insurance, the Marketscan commercial claims database. (cdc.gov)
- They identified outpatient cases of swimmer's ear and analyzed the total cost for each visit. (cdc.gov)
- That average cost was multiplied by the 2.4 million cases to determine the overall cost estimate for swimmer's ear cases. (cdc.gov)
- Most people think of swimmer's ear as a mild condition that quickly goes away, but this common infection is responsible for millions of illnesses and substantial medical costs each year," said Michael Beach, Ph.D., CDC's associate director for healthy water. (cdc.gov)
- What is swimmer's ear? (hopkinsmedicine.org)
- Swimming in unclean water is a common cause of swimmer's ear. (hopkinsmedicine.org)
- Who is at risk for swimmer's ear? (hopkinsmedicine.org)
- What are the symptoms of swimmer's ear? (hopkinsmedicine.org)
- The symptoms of swimmer's ear may look like other health problems. (hopkinsmedicine.org)
- How is swimmer's ear diagnosed? (hopkinsmedicine.org)
- How is swimmer's ear treated? (hopkinsmedicine.org)
- With proper treatment from a healthcare provider, swimmer's ear often clears up in 7 to 10 days. (hopkinsmedicine.org)
- What are the complications of swimmer's ear? (hopkinsmedicine.org)
- What can I do to prevent swimmer's ear? (hopkinsmedicine.org)
- But if you have swimmer's ear, and you stick your finger in your ear - YOW! (kidshealth.org)
- How Does Swimmer's Ear Happen? (kidshealth.org)
- Swimmer's ear - also called otitis externa (say: o-TY - tus ek-STUR-nuh) - is different from a regular ear infection. (kidshealth.org)
- For instance, you don't usually get swimmer's ear from taking baths or showers. (kidshealth.org)
- How Do I Know if I Have Swimmer's Ear? (kidshealth.org)
- Swimmer's ear may start with some itching, but try not to scratch because this can make the infection worse. (kidshealth.org)
- Ear pain is the most common sign of swimmer's ear. (kidshealth.org)
- If a doctor thinks you have swimmer's ear, they will help you get rid of the infection. (kidshealth.org)
- If you have a big problem with swimmer's ear or you're a kid who's always in the water, the doctor may suggest ways for you to protect yourself. (kidshealth.org)
Symptoms11
- If skin irritation occurs from the ear seeds, or if swelling should occur, remove the ear seeds and contact your doctor if symptoms persist. (earseeds.com)
- What Are the Signs & Symptoms of an Ear Tag? (kidshealth.org)
- This article will discuss the possible causes, symptoms, diagnosis, and treatment of ear eczema. (medicalnewstoday.com)
- Ear eczema causes symptoms similar to those of eczema on other parts of the body. (medicalnewstoday.com)
- The symptoms of ear eczema can also affect the area behind the ear. (medicalnewstoday.com)
- Mastoiditis, which is an uncommon condition that causes AOM symptoms as well as redness or swelling behind the ear. (medicalnewstoday.com)
- A person's symptoms will differ depending on the type of ear infection they have. (medicalnewstoday.com)
- The symptoms may be present in one or both ears and may come and go. (medicalnewstoday.com)
- Someone with a chronic ear infection does not usually have any visible symptoms. (medicalnewstoday.com)
- Fluid build-up in the middle ear can become infected, which will cause pain and other symptoms. (medicalnewstoday.com)
- Bacteria can infect an already inflamed ear and cause other symptoms, like a fever . (webmd.com)
Bacteria10
- That's because they don't fight off viruses and bacteria as well, and their little ears aren't good at draining fluids yet. (webmd.com)
- The micro-ear might mean it is possible to use wild bacteria and many of them to get a much better understanding of what they do. (bbc.co.uk)
- Wired Staff, Wired , 31 Oct. 2020 But really, dirty glasses can also negatively impact your health: Bacteria can grow on nose pads and ear clips of eyeglasses, leading to staph infections and other skin issues, according to a 2018 study. (merriam-webster.com)
- The antibiotic will kill the bacteria that are causing the ear infection. (seattlechildrens.org)
- To do that, the doctor will probably prescribe ear drops that contain an antibiotic to kill the bacteria. (kidshealth.org)
- Viruses cause most ear infections, although sometimes bacteria are the culprit. (medicalnewstoday.com)
- Busy day-care centers can also increase the risk of children developing ear infections, as they come into more contact with viruses and bacteria. (medicalnewstoday.com)
- Bacteria can cause an ear infection, but usually these germs come after a virus or an allergic reaction . (webmd.com)
- A shot called the conjugate pneumococcal vaccine can help protect your child against some of the most common bacteria that cause ear infections. (webmd.com)
- Ears are delicate organs that can be damaged by physical injuries, bacteria or even changes in the environment. (livescience.com)
Infection28
- Often, a virus causes an ear infection, in which case antibiotics won't help. (webmd.com)
- If an infection causes serious complications, fluid remains in the ear for a long time, or your child has ear infections that keep coming back, your doctor might want to do a procedure called a myringotomy . (webmd.com)
- The ear may be affected by disease, including infection and traumatic damage. (wikipedia.org)
- This will help to see if you also have an infection in your middle ear. (hopkinsmedicine.org)
- The sample is sent to a lab to find out what is causing the ear infection. (hopkinsmedicine.org)
- of children with an ear infection will have a fever. (seattlechildrens.org)
- 90% of children have at least 1 ear infection. (seattlechildrens.org)
- Ear infections are the most common bacterial infection of young children. (seattlechildrens.org)
- Reason: To stop the ear infection from flaring up again. (seattlechildrens.org)
- Let's find out more about this painful type of ear infection, which often affects swimmers. (kidshealth.org)
- Usually, when people say a kid has an ear infection, they mean otitis media (say: ME-dee-uh), an infection of the middle ear. (kidshealth.org)
- Sometimes, an ear infection can come back again and again. (medicalnewstoday.com)
- We also discuss the ways to treat and prevent a chronic ear infection. (medicalnewstoday.com)
- Acute otitis media (AOM) is the most common type of ear infection. (medicalnewstoday.com)
- It develops after an original ear infection has resolved, but fluid remains trapped in the middle ear. (medicalnewstoday.com)
- Another form of chronic ear infection is called chronic suppurative otitis media (CSOM). (medicalnewstoday.com)
- Chronic ear infections develop from a long-lasting or recurrent acute ear infection. (medicalnewstoday.com)
- Preventing acute ear infections can help prevent chronic ear infection. (medicalnewstoday.com)
- Anyone who still has an ear infection after several days should seek medical attention to find out the type of ear infection they have. (medicalnewstoday.com)
- About half of kids get at least one ear infection, also known as acute otitis media , before their second birthday. (webmd.com)
- What Causes an Ear Infection? (webmd.com)
- The most common trigger of an ear infection in kids is an upper respiratory infection , like a cold or the flu . (webmd.com)
- Some kids only get an ear infection once, or once in awhile. (webmd.com)
- If so, it's called acute ear infection (or acute otitis media) . (webmd.com)
- A t times, fluid can also build up in your child's middle ear without signs of infection. (webmd.com)
- About half the time, an ear infection goes away on its own. (webmd.com)
- Is there anything that's worse than having a child who might be suffering from an ear infection? (popsci.com)
- While the Oto Home can't itself tell you whether or not someone is suffering from an ear infection, its companion app lets you take a video of the ear and send it to a medical professional, who can then hopefully diagnose the condition-and potentially even prescribe treatment. (popsci.com)
20231
- Rushinga, Zimbabwe - To build the capacity of health care professionals to provide essential ear and hearing care services to communities, the Ministry of Health and Child Care conducted a four-day training from 25 -27 October 2023 in Rushinga District, Mashonaland Central Province. (who.int)
Headphones5
- Innovative use of bone conduction headphones, a microphone and the Hear Glue Ear app, sent through the post to patients, is a novel, new and effective approach to the management of glue ear and its resulting hearing loss, especially when families have reduced access to audiology or Ear Nose and Throat (ENT) services, such as during the COVID-19 pandemic,' the authors write. (medscape.com)
- Apple has discretely updated its premium In-Ear Headphones, replacing the rubber 3.5 mm headphone plug casing with a hard plastic one, perhaps in an attempt to fix cord protectors that users complained came easily unfastened. (appleinsider.com)
- Appleâ s In-Ear Headphones replaced the original, $39 upgrade model, which were largely considered to be a flop. (appleinsider.com)
- And after the debut of the iPhone, the second-generation iPod touch, and fourth-generation iPod nano, the ability to record voice became a crucial component of any headphone upgrade, so the improved In-Ear Headphones filled that need. (appleinsider.com)
- The premium upgrade features three different sizes of ear tips and a carrying case for the tips and headphones. (appleinsider.com)
Child's4
- All families chose to keep the kit at the end of the study, even if the child's hearing improved, often fearing glue ear may return. (medscape.com)
- A soft silicone mold is created to hold your child's ear in a better, more normal shape. (dukehealth.org)
- Autologous refers to the use of your child's own cartilage to reconstruct the missing or severely deformed ear. (dukehealth.org)
- Cartilage is taken from your child's ribs, then carved and shaped into the framework for a new ear. (dukehealth.org)
Otitis media with effusion2
- A bone conduction (BC) headset and microphone kit combined with a free phone app has proved to be an effective approach to remotely manage children with glue ear (otitis media with effusion [OME]), the results of a new study suggest. (medscape.com)
- Chronic otitis media with effusion (COME) is when fluid stays in the ear for an extended period or keeps coming back. (medicalnewstoday.com)
Nose and Throat3
- This part of your ear is supposed to be vented by air that passes into your nose and throat and through a passage called the eustachian tube. (webmd.com)
- When the food antigen load surpasses the body's ability to clear the food immune complexes from the circulation, tissue deposition, complement activation, and secretory inflammation of the ear, nose and throat occur. (healthy.net)
- An ear nose and throat specialist provided hands-on demonstrations of ear examinations using autoscopes and ear washout techniques. (who.int)
Inflammation2
- Otitis media means inflammation of the middle ear . (webmd.com)
- Cauliflower ear can also present in the setting of nontraumatic inflammatory injury of auricular connective tissue such as in relapsing polychondritis (RP), a rare rheumatologic disorder in which recurrent episodes of inflammation result in destruction of cartilage of the ears and nose. (wikipedia.org)
20191
- Vogue , 18 Oct. 2019 The over- ear clip makes them stable and comfortable, and the W1 chip makes pairing a breeze. (merriam-webster.com)
Anotia3
- Microtia/anotia is a congenital malformation of the ear in which the external ear (auricle) is underdeveloped and either abnormally shaped (microtia) or absent (anotia). (cdc.gov)
- Birth defects in which a child is born with a partial ear (microtia) or complete absence of an ear (anotia). (dukehealth.org)
- More complex treatment is required for small, deformed ears (microtia) and missing ears (anotia). (dukehealth.org)
Throat5
- The middle ear contains the three small bones-the ossicles-involved in the transmission of sound, and is connected to the throat at the nasopharynx, via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
- The middle ear also connects to the upper throat at the nasopharynx via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
- The eustachian tube joins the middle ear to the back of the throat. (seattlechildrens.org)
- Acute ear infections happen when the eustachian tube, a tube that runs from the middle ear to the back of the throat, becomes clogged. (medicalnewstoday.com)
- For the last 4 years, 7 year old Tyler had endured three ear surgeries (under general anesthetic), sixteen courses of every pediatric antibiotic, countless exams, chronic nasal congestion, and constant sniffing and throat clearing. (healthy.net)
Front of the ear2
- in front of the ear that some babies are born with. (kidshealth.org)
- Some children are born with extra tags of skin and cartilage attached to their ear or on their cheek in front of the ear. (dukehealth.org)
Cartilage6
- After sculpting the cartilage to the desired shape, the surgeon will apply sutures to anchor the ear until healing occurs to hold the ear in the desired position. (aafprs.org)
- The components of the ear involved in cauliflower ear are the outer skin, the perichondrium, and the cartilage. (wikipedia.org)
- These are often called "cauliflower ears" and result from a buildup of blood, scar tissue, or cartilage. (dukehealth.org)
- Your baby's ear cartilage will gently remodel over the next several months. (dukehealth.org)
- The external ear, also called the auricle or pinna, is the loop of cartilage and skin that is attached to the outside of the head. (livescience.com)
- The auricle (visible part of ear) is composed mainly of cartilage covered by skin and consists of the helix, antihelix, lobule, tragus, and concha. (medscape.com)
Cotton swabs1
- The use of cotton swabs as an ear cleaner can smear wax and debris back into the ear. (shoprite.com)
Antibiotic1
- Most ear infections are not cured after the first dose of antibiotic. (seattlechildrens.org)
Swollen2
- People should consult with their health care provider if their ears are itchy, flaky, swollen or painful or have fluid draining from them. (cdc.gov)
- As a result, the outer ear becomes permanently swollen and deformed, resembling a cauliflower, hence the name. (wikipedia.org)
Drops6
- Your provider will give you instructions on how to use ear drops. (hopkinsmedicine.org)
- Your health care provider may recommend drops to help dry your ears. (hopkinsmedicine.org)
- Use the drops as long as your doctor tells you to, even if your ear starts feeling better. (kidshealth.org)
- For instance, your mom or dad can get some special drops to put in your ears after swimming to dry up the water in there. (kidshealth.org)
- Add Auro DRI Ear Drying Drops, 1 fl oz to Favorites. (shoprite.com)
- Add Similasan Earache Relief Ear Drops, 0.33 fl oz to Favorites. (shoprite.com)
Fluid in the middle1
- It's called a tympanometer, and it uses sound and air pressure to check for fluid in the middle ear. (webmd.com)
Located in the middle1
- It is located in the middle ear, just behind the ear drum. (webmd.com)
Pressure in the middle2
- This is from the pressure in the middle ear. (seattlechildrens.org)
- The Eustachian tube, or pharyngotympanic tube, equalizes air pressure in the middle ear with the air pressure in the atmosphere. (livescience.com)
Diseases3
- Diseases of the ear may lead to hearing loss, tinnitus and balance disorders such as vertigo, although many of these conditions may also be affected by damage to the brain or neural pathways leading from the ear. (wikipedia.org)
- The manual is a practical guide on the prevention, identification and management of hearing loss and common ear diseases. (who.int)
- It contains modules on the mechanism of hearing, conducting ear examination and hearing assessment, guidance on prevention, management, and referral of common ear diseases, as well as rehabilitation of hearing loss. (who.int)
Germs1
- If anything blocks air from getting through, the middle ear can become damp and warm - a perfect breeding ground for germs. (webmd.com)
Molds2
- The ER-9, ER-15, or ER-25 filters are embedded in custom ear molds for a natural sound plug with a perfect fit, and because the filters are interchangeable, you can choose from three different levels of sound reduction to get just the sound reduction you need to listen comfortably while still maintaining your peak performance. (askjan.org)
- Minor ear deformities such as cup ear or lop ear may be reshaped with custom ear molds. (dukehealth.org)
Canals2
- The ear is a self cleaning organ through its relationship with earwax and the ear canals. (wikipedia.org)
- A simple push-in motion is all it takes to get these ear plugs seated properly in your ear canals. (askjan.org)
Foam ear plugs2
- With NRR 15 noise protection, these foam ear plugs for musicians will help prevent hearing damage and tinnitus with minimal distortion of sound. (askjan.org)
- Sound protection foam ear plugs can push wax back into the ear. (shoprite.com)
Cauliflower5
- Cauliflower ear is an irreversible condition that occurs when the external portion of the ear is hit and develops a blood clot or other collection of fluid under the perichondrium. (wikipedia.org)
- The most common cause of cauliflower ear is blunt trauma to the ear leading to a hematoma which, if left untreated, eventually heals to give the distinct appearance of cauliflower ear. (wikipedia.org)
- Perichondral hematoma and consequently cauliflower ear are diagnosed clinically. (wikipedia.org)
- To assist with settling on the best form of treatment for cauliflower ear Yotsuyanagi et al. (wikipedia.org)
- A specialty ear splint can also be made to keep the ear compressed, so that the damaged ear is unable to fill thus preventing cauliflower ear. (wikipedia.org)
Eustachian tube2
- These viruses can swell the eustachian tube so that air can't flow into the middle ear. (webmd.com)
- These in turn are deposited on the mucosa of the middle ear, Eustachian tube, and nasopharynx. (healthy.net)
Occur3
- On the ears, it can commonly occur due to contact with earrings or cosmetics people use on the surrounding hair. (medicalnewstoday.com)
- Frequent ear infections occur in 20% of children. (seattlechildrens.org)
- Importantly, an auricular hematoma can also occur on the posterior ear surface, or even both surfaces. (wikipedia.org)
Types of ear1
- In this article, we look at the different types of ear infections and what makes them chronic. (medicalnewstoday.com)
Microtia1
- Exclude microtia type I - small ear with normal components or with minor anomalies of individual structures is a minor anomaly, not to be included in public health surveillance. (cdc.gov)
Develops1
- The ear develops from the first pharyngeal pouch and six small swellings that develop in the early embryo called otic placodes, which are derived from ectoderm. (wikipedia.org)
Shape of the ear2
- Though the shape of the ear itself is indiscernible to visitors, disappearing at ground level and blending naturally with its surroundings, Kozak-iewicz believes that we find comfort in spaces that reflect our own contours, echoing the Vitruvian ideal of the human body as the measure for architecture. (metropolismag.com)
- Delineating the position and shape of the ear might require threedimensional ultrasound. (cdc.gov)
Children with an ear1
- Most children with an ear tag are healthy and have normal hearing. (kidshealth.org)
Drainage4
- This is called an ear drainage culture. (hopkinsmedicine.org)
- Swimming is fine as long as there is no drainage from the ear. (seattlechildrens.org)
- Allergies, post-nasal drainage, sinus infections, common cold viruses, and problems with the tonsils can all prevent enough air from passing into the middle ear. (webmd.com)
- Anesthesia of the ear is useful for repair of lacerations, hematoma incision and drainage, and other painful procedures of the ear. (medscape.com)
Complications1
- People with untreated or chronic ear infections can develop several complications. (medicalnewstoday.com)
Keep your ears1
- It's an extra step that just might keep your ears in super shape all summer! (kidshealth.org)
Diagnosis and Treatment1
- People should speak with their doctor when they first notice ear eczema for proper diagnosis and treatment. (medicalnewstoday.com)
Commonly2
- CDC, public health and regulatory officials in several states, and the FDA external icon investigated a multistate outbreak of Salmonella Stanley infections linked to wood ear mushrooms (also commonly known as kikurage or dried fungus). (cdc.gov)
- Wood ear mushrooms are also commonly referred to as kikurage, dried black fungus, dried fungus, or mu'er/mu er/mu-err. (cdc.gov)
Anatomy5
- Anatomy of the ear. (livescience.com)
- Anatomy of the ear is shown below. (medscape.com)
- Knowledge of the nerve anatomy is critical in understanding anesthesia of the ear. (medscape.com)
- Anatomy of the sensory nerves of the external ear are shown in the image below. (medscape.com)
- For more information about the relevant anatomy, see Ear Anatomy . (medscape.com)
Plugs11
- Use ear plugs when you are swimming or showering. (hopkinsmedicine.org)
- With these ear plugs in, you'll still be able to hear what's going on around you, including detailed music and voices. (askjan.org)
- What makes Comply™ Foam Plugs different is that these are foam-tipped musician's ear plugs. (askjan.org)
- Most ear plugs for music are made of silicone and have a multi-flange fitting system. (askjan.org)
- Perfect-Fit™ CMP Model Custom Musician Ear Plugs, featuring acoustic filters from Etymotic Research are one of the finest hearing protection products currently available for the professional musician or for anyone needing to be able to hear clearly but at a reduced volume. (askjan.org)
- These custom molded musician ear plugs require you to mail us impressions of your ears. (askjan.org)
- Now you can make your own impressions right at home using our do-it-yourself impression kit or visit a local audiologist to get your impressions made, then get your perfectly fitted custom musicians ear plugs shipped to your door. (askjan.org)
- Custom musicians ear plugs are not just for musicians. (askjan.org)
- Thunderplugs ear plugs are designed for music festivals and concerts, by serious music lovers who know all-too-well what can happen without proper protection from hazardously loud noise. (askjan.org)
- Westone Style ES49 custom musicians ear plugs have been the first choice of performing musicians around the world for decades. (askjan.org)
- Add Hearos Xtreme Protection NRR 33 Ear Plugs, 14 pair to Favorites. (shoprite.com)
Lobe1
- Researchers also found that the average ear is about 2.5 inches (6.3 centimeters) long, and the average ear lobe is 0.74 inches (1.88 cm) long and 0.77 inches (1.96 cm) wide. (livescience.com)
Vertebrates1
- The ears of vertebrates are placed somewhat symmetrically on either side of the head, an arrangement that aids sound localization. (wikipedia.org)
Preauricular1
- A renal ultrasound should be performed in patients with isolated preauricular pits, cup ears, or any other ear anomaly accompanied by 1 or more of the following: other malformations or dysmorphic features, a family history of deafness, auricular and/or renal malformations, or a maternal history of gestational diabetes. (nih.gov)
Middle12
- The round window consists of a thin, membranous partition that separates the perilymph of the cochlear chambers from the air-filled middle ear. (medscape.com)
- The tube, which will usually fall out on its own in about 6 to 18 months, lets the fluid out and air flow through to keep the middle ear dry. (webmd.com)
- Holding your head erect can help drain your middle ear. (webmd.com)
- The middle ear includes the tympanic cavity and the three ossicles. (wikipedia.org)
- Blockage results in middle ear fluid (called viral otitis). (seattlechildrens.org)
- Cholesteatoma, which is a growth of skin cells in the middle ear, often due to recurrent ear infections. (medicalnewstoday.com)
- The following can put your child at risk for repeat middle ear infections. (webmd.com)
- During a short surgery called a myringotomy, tiny tubes are put into the ear to keep the middle ear vented. (webmd.com)
- Antibiotics for middle ear disease are the most common childhood prescription in America, yet 88% of acute otitis media (AOM) clear without antibiotics. (healthy.net)
- For kids age 2-6, middle ear disease accounts for 34-42% of all visits to the pediatrician. (healthy.net)
- Heavy deposits trigger the inflammatory cascade, mucosal damage, and middle ear fluid secretion (as well as a runny nose). (healthy.net)
- The vibrations pass through the tympanic membrane and enter the middle ear, also called the tympanic cavity. (livescience.com)
Chronic suppurative2
- AFRO subsequently developed two ear and hearing care modules tailored for PHC: chronic suppurative otitis media and screening for hearing loss in children for early intervention. (who.int)
- The training equipped participants with the knowledge and skills to assess, diagnose, and treat patients presenting with chronic suppurative otitis media and hearing loss, the two most prevalent ear conditions in Africa. (who.int)