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Ch. 6 Study Stack

TermDefinition
auricle projected part of the external ear
pinna external passage for sounds collected from the auricle to the tympanic membrane
external auditory meatus external passage for sounds collected from the auricle to the tympanic membrane
cerumen a waxy substance secreted by glands located throughout the external canal
tympanic membrane drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear
tympanum drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear
malleus (hammer) first of the three auditory ossicles of the middle ear
incus (anvil) middle of the three auditory ossicles of the middle ear
stapes (stirrup) last of the three auditory ossicles of the middle ear
eustachian tube tube connecting the middle ear to the pharynx (throat)
auditory tube tube connecting the middle ear to the pharynx (throat)
oval window membrane that covers the opening between the middle ear and internal ear
labyrinth sense body movement and position to maintain balance and equilibrium
cochlea coiled tubular structure of the internal ear that contains the spiral organ of Corti
perilymph fluid that fills the bony labyrinth of the internal ear
endolymph fluid within the membranous labyrinth of the internal ear
spiral organ contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
organ of Corti contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
vestibule functions to provide body balance and equilibrium
utricle the larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
saccule the smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
semicircular canals three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
otalgia earache
otorrhagia bleeding from the ear
otorrhea purulent drainage from the ear
tinnitus a ringing or buzzing in the ears; a jingling
vertigo a turning round; dizziness
otitis externa inflammation of the external acoustic meatus
myringitis inflammation of the eardrum
otitis media inflammation of the middle ear
Created by: sheerinmansoor
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