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15 Cards in this Set
- Front
- Back
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3 ear regions
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outter, middle, inner
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auricle (pinna)
[O.E.] |
projecting flap of ear, sound waves enter
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cerumen
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waxy substance, lubricates and protects ear
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auditory canal
(external auditory meatus) [O.E.] |
leads from the pinna and secretes cerumen
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tympanic membrane
(eardrum) |
membrane b/t outter and inner ear
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ossicles
[M.E.] |
3 small bones in eardrum, conduct sound waves thru middle ear
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malleus, incus, stapes
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3 small bones in eardrum
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oval window
[M.E.] |
seperates middle ear from outter ear
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eustachian tube
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leads from middle ear to throat
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cochlea
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leads from oval window
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perilymph & endolymph
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liquids thru which vibrations travel, in cochlea
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organ of corti
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auditory receptor, receive vibrations from auditory liquids
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inner ear
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labyrinth
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auditory nerve fibers
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end in cerebral cortex, vibrations are heard
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vestibule
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connects cochlea to semicircular for balance
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