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Middle Ear
the chamber between the eardrum and cochlea containing three tiny bones (hammer, anvil, and stirrup) that concentrate the vibrations of the eardrum on the cochlea's oval window
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Cochlea
a coiled, bony fluid filled tube in the inner ear through which sound waves trigger nerve impulses
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Inner Ear
the innermost part of the ear, containing the cochlea, semicircular canals and vestibular sacs
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Place Theory
in hearing, the theory that links the pitch we hear with the place where the cochlea's membrane is stimulated
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Frequency Theory
in hearing, the theory that the rate of nerve impulses travelling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch
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Conduction Hearing Loss
hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea
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Sensorineural Hearing Loss
Hearing loss caused by damage to the cochlea's receptor cells or to the auditory nerves; also called nerve deafness
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Cochlear Implant
a device for converting sounds into electrical signals and stimulating the auditory nerves through electrodes threaded in the cochlea
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