Glossary
Tympanic membrane
A membrane at the end of the auditory canal that vibrates in response to changes in air pressre; also known as eardrum.
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Tectorial membrane
A membrane that hangs over the organ of Corti in the cochlea.
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Stereocilium
A hair-like cilium attached to the top of a hair cell in the organ of Corti.
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Stapes
An ossicle in the middle ear connected to the oval window; shaped somewhat like a stirrup.
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Scala vestibule
A chamber in the cochlea which spans rom the oval window to the helicotrema.
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Scala tympani
A chamber in the cochlea which spans from the helicotrema to the round window.
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Scala media
A chamber in the cochlea between the scala vestibule and the scala tympani.
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Round window
A hole covered by membrane in the bony cochlea that is continuous with the scala tympani.
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Pinna
The funnel-shapped external ear made largely of cartilage covered by skin.
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Perilymph
The fluid in the scala vestibule and scala tympani within the cochlea, containing low potassium ion and high sodium ion concentrations.
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