tympanic membrane - tympanic membrane (eardrum): boundary...

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tympanic membrane (eardrum): vibrates with frequency of sound waves entering through external ear; transfers vibration to ossicles of middle ear - middle ear (tympanic cavity): small air-filled cavity within temporal bone lined round (cochlear) window ) the anterior wall of the middle ear contains an opening to the auditory tube (leads to nasopharynx) contains 3 ossicles (small bones) suspended by ligaments: o malleus (hammer) – attaches to eardrum o incus (anvil) o stapes (stirrup) – attaches to oval window of vestibule - inner ear (labyrinth): bony labyrinth: containing the membranous labyrinth membranous labyrinth: floats in perilymph within bony labyrinth; filled with fluid called endolymph vestibule: central region composed of 2 sacs – the o
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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tympanic membrane - tympanic membrane (eardrum): boundary...

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