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external auditory canal
transmits sound waves from the pinna to the tympanic membrane of the middle of the ear
located under the base of the stapes, the membrane that separates the middle ear from inner ear
organ of Corti
receives vibrations from the cochlear duct and relays them to the auditory nerve fibers
transmit this information to the brain, and the brain sends messages to muscles in all parts of the body to ensure that equilibrium is maintained
specializes in the measurement of hearing function and in the rehabilitation of persons with hearing impairments
an accumulation of earwax that forms a solid mass by adhering to the walls of the external auditory canal
pressure-related ear discomfort that can be caused by pressure changes when flying, driving in the mountains, scuba diving, or when the eustachian tube is blocked
acute otitis media
usually associated with an upper respiratory infection and is most commonly seen in young children
serous otitis media
a fluid buildup in the middle ear that can follow acute otitis media or can be caused by obstruction of the eustachian tube
a sense of whirling, dizziness, and the loss of balance, that is often combined with nausea and vomiting
a rare chronic disease in which the amount of fluid in the inner ear increases intermittently, producing attacks of vertigo, a fluctuating hearing loss, and tinnitus
conductive hearing loss
occurs when the sound waves are prevented from passing from the air to the fluid filled inner ear
sensorineural hearing loss
develops when the auditory nerve or hair cells in the inner ear are damaged
noise-induced hearing loss
a type of nerve deafness caused by repeated exposure to extremely loud noises such as a gunshot, or to moderately loud noise that continues for long periods of time
the measurement of the ability to hear and understand speech sounds based on their pitch and loudness
the surgical incision in the eardrum to create an opening for the placement of tympanostomy tubes
tiny ventilating tubes placed through the eardrum to provide ongoing drainage for fluids and to relieve pressure that can build up after childhood ear infections; "pediatric ear tubes"
the surgical correction of a damaged middle ear, either to cure chronic inflammation of to restore function
the surgical removal of the top portion of the stapes bone and the insertion of a small prosthetic device known as a piston that conducts sound vibrations to the inner ear
a surgical procedure in which a new opening is created in the labyrinth to restore hearing
a surgical incision between two of the fluid chambers of the labyrinth to allow the pressure to equalize
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