Lab 32- Ear and Hearing

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connects middle ear and pharynx

auditory tube

wax-secreting structure

ceruminous gland

s-shaped tube leading to tympanic membrane

external acoustic meatus

bony canal of inner ear in temporal bone

osseous (bony) labyrinth

extends from apex of cochlea to round window and contains perilymph

scala tympani

leads from oval window to apex of cochlea and contains perilymph

scala vestibuli

auditory ossicle attached to oval window

stapes

contacts hairs of hearing receptors

tectorial membrane

air-filled space containing auditory ossicles within middle ear

tympanic cavity

cone-shaped, semitransparent membrane attached to malleus

tympanic membrane (eardrum)

auditory ossicle attached to tympanic membrane

malleus

tube containing endolymph within osseous labyrinth

membranous labyrinth


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