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The function of the eardrum in the middle ear is to vibrate sound waves into the year. It transmits sound from the environment into the ossicles found in the middle ear.
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How the human ear hears sound?
1. The outer ear picks up the sound vibrations 2. These sound waves travel through the ear canal 3. The eardrum vibrates and make 3 tiny bones in the middle ear move 4. These bones send these vibrations to the shell-shaped structure called choqlea 5. The sound vibrations make the liquid in the cocheleq move making the hair move back and forth 6. The hair are joined to the nerves and send signals to your brain
How many bones are in an ear?
All mammals have the standard 3 auditory ossicles of the middle ear. This sets them apart from the other animals. These bones amplify and transmit sound vibrations from the tympanic membrane (eardrum) to the oval window.tympanic side = malleus or hammermiddle = incus or anviloval window side = stapes or stirrup
What part do the bone in the middle ear play in the process of us hearing sound?
The "bone you are referring to is your hearing chain, so yes it affects your hearing. I know this because my daughter growing up had what is referred to as a cholesteatoma. A mass of skin that takes up residence behind the eardrum, that although is not cancerous acts like it is. It crawls and weaves around the hearing bone, It destroyed her ear drum and her hearing chain (bone). She now has a plastic (artificial) hearing bone but still only has 10% of her hearing in that ear. the only way to explain it is this... If you have a cup of water with a straw in it 6 inches from your mouth can the liquid get to your mouth? Same thing, the noise goes into your ear but stops where the straw ends thus filtering the sound. Any child that has more ear infections than what seams normal should be checked really well for this. My daughter had her first set of tubes when she was 14 months old. The cholesteatoma was missed by an ent when she was 10 even though here ear was bleading and oozing green stuff.
Does the middle ear control your sense of equilibrium?
equillibrium is balance and the semi circular canals in the ear affect it
What do you have to do if ear ruptured?
I actually had both ear drums ruptured August 2008. After seeing an ear specialist, I found that your ear drums will most likely heal on their own in approximately 4 to 6 weeks. Your doctor will want to schedule a follow up to make sure they are healing. If not, possibly surgical repair.
What can you do about a busted eardrum?
Typically, it should heal on it's own. I am dealing with it now and outside of the chance of middle ear infection, the eardrum shoud heal within 6-8 weeks. You should make sure you see a specialist to look at it and eliminate and other issues you may be having.
How the human ear hears sound?
1. The outer ear picks up the sound vibrations 2. These sound waves travel through the ear canal 3. The eardrum vibrates and make 3 tiny bones in the middle ear move 4. These bones send these vibrations to the shell-shaped structure called choqlea 5. The sound vibrations make the liquid in the cocheleq move making the hair move back and forth 6. The hair are joined to the nerves and send signals to your brain
What are the structures of the middle ear?
6 walls,3 ossicles,eustachian tube
How does the human ear hear?
1. The outer ear picks up the sound vibrations 2. These sound waves travel through the ear canal 3. The eardrum vibrates and make 3 tiny bones in the middle ear move 4. These bones send these vibrations to the shell-shaped structure called choqlea 5. The sound vibrations make the liquid in the cocheleq move making the hair move back and forth 6. The hair are joined to the nerves and send signals to your brain
Ear infection - chronic?
DefinitionChronic ear infection is inflammation or infection of the middle ear that persists or keeps coming back, and causes long-term or permanent damage to the ear.See also: Acute ear infectionAlternative NamesMiddle ear infection - chronic; Otitis media - chronic; Chronic otitis media; Chronic ear infectionCauses, incidence, and risk factorsFor each ear, a eustachian tube runs from the middle ear to the back of the throat. This tube drains fluid that is normally made in the middle ear. If the eustachian tube becomes blocked, fluid can build up. When this happens, germs such as bacteria and viruses can multiply and cause an infection. This is called an acute ear infection (acute otitis media).A chronic ear infection occurs when fluid or an infection behind the eardrum does not go away. A chronic ear infection may be caused by an acute ear infection that does not clear completely, or repeated ear infections. Fluid in the middle ear may become very thick. Sometimes, the eardrum (tympanic membrane) may stick to the bones in the middle ear.A chronic ear infection may cause permanent changes to the ear and nearby bones, including:Infection in the mastoid bone behind the ear (mastoiditis)Ongoing drainage from a hole in the eardrum that does not heal, or after the ear tubes (tympanostomy tubes) are insertedCyst of the middle ear (cholesteatoma)Hardening of the tissue in the middle ear (tympanosclerosis)Damage to, or wearing away of the bones of the middle ear, which help with hearing"Suppurative chronic otitis" is a phrase doctors use to describe an eardrum that keeps rupturing, draining, or swelling in the middle ear or mastoid area and does not go away.Ear infections are more common in children because their Eustachian tubes are shorter, narrower, and more horizontal than in adults. Chronic ear infections are much less common than acute ear infections.SymptomsA chronic, long-term infection in the ear may have less severe symptoms than an acute infection. It may go unnoticed and untreated for a long time.Symptoms include:Ear pain or discomfort, earacheUsually mildMay feel like pressure in the earFeverFussinessPus-like drainage from the earHearing lossNote: Symptoms may be continuous or come and go, and may occur in one or both ears.Signs and testsAn examination of the ear may show:DullnessRednessAir bubblesFluid behind the eardrumDraining fluid from the eardrumA hole (perforation) in the eardrumThe eardrum bulges out or pulls back inwardTests may include:Cultures of the fluid may show bacteria, and these bacteria may be resistant or harder to treat than the bacteria commonly involved in an acute ear infection.Skull x-rays or a CT scan of the head or mastoids may show that the infection has spread beyond the middle ear.Hearing tests may be needed.TreatmentThe health care provider may prescribe antibiotics if the infection may be due to bacteria. You may need to take antibiotics for a long time, either by mouth or sometimes into a vein (intravenously).If there is a hole in the eardrum, antibiotic ear drops are used. For a difficult-to-treat infected ear that has a hole (perforation), a dilute acidic solution (such as distilled vinegar and water) may be recommended by your health care provider.A surgeon may need to clean out (debride) tissue that has gathered inside the ear.Other surgeries that may be needed include:Surgery to clean the infection out of the mastoid bone (mastoidectomy)Surgery to repair or replace the small bones in the middle earRepair of the eardrumExpectations (prognosis)Chronic ear infections usually respond to treatment. However, your child may need to keep taking medicines for several months.Chronic ear infections are not life threatening, but they can be uncomfortable and may result in hearing loss and other serious complications.ComplicationsPartial or complete hearing loss due to damage of the middle earSlow development of language or speechParalysis of the faceInflammation around the brain (epidural abscess) or in the brainDamage to the part of the ear that helps with balancePermanent hearing loss is rare, but the risk increases with the number and length of infections.Calling your health care providerCall for an appointment with your health care provider if:You or your child has signs of a chronic ear infectionAn ear infection does not respond to treatmentNew symptoms develop during or after treatmentPreventionGetting prompt treatment for an acute ear infection may reduce the risk of developing a chronic ear infection. Have a follow-up examination with the health care provider after an ear infection has been treated to make sure that it is completely cured.ReferencesChole RA, Sudhoff HH. Chronic otitis media, mastoiditis, and petrositis. In: Cummings CW, Flint PW, Haughey BH, Robbins KT, Thomas JR, eds. Otolaryngology: Head & Neck Surgery. 4th ed. Philadelphia, Pa: Mosby Elsevier;2005:chap 133.Morris PS, Leach AJ. Acute and chronic otitis media. Pediatr Clin North Am. 2009 Dec;56(6):1383-99.
How many bones are in an ear?
All mammals have the standard 3 auditory ossicles of the middle ear. This sets them apart from the other animals. These bones amplify and transmit sound vibrations from the tympanic membrane (eardrum) to the oval window.tympanic side = malleus or hammermiddle = incus or anviloval window side = stapes or stirrup
What part do the bone in the middle ear play in the process of us hearing sound?
The "bone you are referring to is your hearing chain, so yes it affects your hearing. I know this because my daughter growing up had what is referred to as a cholesteatoma. A mass of skin that takes up residence behind the eardrum, that although is not cancerous acts like it is. It crawls and weaves around the hearing bone, It destroyed her ear drum and her hearing chain (bone). She now has a plastic (artificial) hearing bone but still only has 10% of her hearing in that ear. the only way to explain it is this... If you have a cup of water with a straw in it 6 inches from your mouth can the liquid get to your mouth? Same thing, the noise goes into your ear but stops where the straw ends thus filtering the sound. Any child that has more ear infections than what seams normal should be checked really well for this. My daughter had her first set of tubes when she was 14 months old. The cholesteatoma was missed by an ent when she was 10 even though here ear was bleading and oozing green stuff.
Does the middle ear control your sense of equilibrium?
equillibrium is balance and the semi circular canals in the ear affect it
Eardrum repair?
DefinitionEardrum repair, called tympanoplasty, is a procedure to correct a tear in the eardrum (tympanic membrane). Ossiculoplasty is the repair of the small bones in the middle ear.Alternative NamesTympanoplasty; Ossiculoplasty; Ossicular reconstructionDescriptionUsing general anesthesia, an ear-nose-throat (ENT) specialist grafts a small patch from a vein or fascia (muscle sheath) onto the eardrum to repair the tear.For problems with the small bones (ossicles), the surgeon will use an operating microscope to view and repair this chain of small bones using plastic artificial bones or ossicles from a donor.Why the Procedure Is PerformedA number of problems can permanently damage your eardrum (tympanic membrane) or harm the very small bones (ossicles) that are right behind the eardrum. These problems include chronic ear infections, trauma, cancer, and cholesteatoma.This damage may cause hearing loss, pain, or an infection that does not go away.If antibiotics or other treatments do not heal chronic ear infections, then surgical eardrum repair may be necessary.RisksRisks for any surgery are:BleedingInfectionProblems breathingReactions to medicationsAdditional risks include:Complete less of hearingDamage to the facial nerve or nerve controlling the sense of tasteDamage to the small bones in the middle ear, causing hearing lossDizziness or vertigoIncomplete healing of the hole in the eardrumBefore the ProcedureAlways tell your doctor or nurse:What allergies you may have to any medications, latex, tape, or skin cleanserWhat drugs you are taking, including herbs, herbs, and vitamins you bought without a prescriptionOn the day of the surgery:Take only a small sip of water with any drugs your doctor has prescribedTell your doctor if you have signs of illness or infectionYou will usually be asked not to drink or eat anything after midnight the night before surgeryYour doctor or nurse will tell you when to arrive at the hospitalAfter the ProcedurePatients usually leave the hospital the same day as the surgery. It is important to avoid water in the ear. There are sometimes stitches behind the ear for the first week and packing material in the ear. Your health care provider may recommend the use of a hair cap when showering for a few weeks after the procedure. Outlook (Prognosis)In most cases, the operation relieves pain and infection symptoms completely. Hearing loss is minor. The outcome may not be as good if the bones in the middle ear need reconstruction along with the eardrum.ReferencesJavia LR, Ruckenstein, MJ. Ossiculoplasty. Otolaryngol Clin North Am. 2006;39(6):1177-1189.El-Kashlan HK, Harker LA. Tympanoplasty and ossiculoplasty. In: Cummings CW, Flint PW, Haughey BH, Robbins KT, Thomas JR, eds. Otolaryngology: Head & Neck Surgery. 4th ed. Philadelphia, Pa: Mosby Elsevier; 2005: chap 136.
Cholesteatoma?
DefinitionCholesteatoma is a type of skin cyst located in the middle ear.Causes, incidence, and risk factorsCholesteatoma can be a birth defect (congenital), but it more commonly occurs as a complication of chronic ear infection.Poor function in the eustachian tube leads to negative pressure in the middle ear. This pulls a part of the eardrum (tympanic membrane) the wrong way, creating a sac or cyst that fills with old skin cells and other waste material. The cyst becomes infected. The cyst may get bigger and break down some of the middle ear bones, affecting hearing.SymptomsDizzinessDrainage from the earHearing loss in one earPain or numbness in or around the earSigns and testsAn ear exam may show a pocket or perforation (opening) in the eardrum, often with drainage. The deposit of old skin cells may be visible with an otoscope, a special instrument to view the ear.The following tests may be performed to rule out other causes of dizziness.Caloric stimulationCT scanElectronystagmographyTreatmentSurgery is needed to remove the cyst.Expectations (prognosis)Cholesteatomas usually continue to grow if not removed. Surgery usually works, but you may occasionally need the ear cleaned by a health care provider. Additional surgery may be needed if the cholesteatoma comes back.ComplicationsBrain abscessDeafness in one earDizziness (vertigo)Erosion into the facial nerve (causing facial paralysis)LabyrinthitisMeningitisPersistent ear drainageSpread of the cyst into the brainCalling your health care providerCall your health care provider if ear pain, drainage from the ear, or other symptoms occur or worsen, or if hearing loss occurs.PreventionPrompt and complete treatment of chronic ear infection may help to prevent some cases of cholesteatoma.ReferencesSmith JA, Danner CJ. Complications of chronic otitis media and cholesteatoma. Otolaryngol Clin North Am. 2006;39(6):1237-1255.
What is the inverse function of -6?
-6 is a number, not a function and so there is not an inverse function.
How many bones in your inner ear?
There are three, the hammer, anvil and stirrup who vibrate on the cochlea.
