Ch. 17 Ear Vocabulary Flashcards
auditory canal
channel that leads from the pinna to the eardrum
auditory meatus
auditory canal
auditory nerve fibers
carry impulses from the inner ear to the brain (cerebral cortex). these fibers compose the vestibulocochlear nerve (cranial nerve XIII)
auditory tube
channel between the middle ear and the nasopharynx;
Eustachian tube
auricle
flap of the ear; protruding part of the outer ear; pinna
cerumen
earwax secreted by external ear
cochlea
snail shell shaped, spirally wound tube in the inner ear; contains hearing sensitive receptor cells
endolymph
fluid within the labyrinth of the inner ear
Eustachian tube
auditory tube
incus
second ossicle (bone) of the middle ear; incus means anvil
labyrinth
maze-like series of canals of the inner ear; includes cochlea, vestibule, and semicircular canal
malleus
first ossicle of the middle ear; malleus means hammer
organ of Corti
sensitive auditory receptor area found in the cochlea of the inner ear
ossicle
small bone of the ear
oval window
membrane between the middle ear and the inner ear
perilymph
fluid contained in the labyrinth of the middle ear
pinna
auricle; flap of ear
semicircular canals
passages in the inner ear associated with maintaining equilibrium
stapes
third ossicle of the middle ear; stapes means stirrup
tympanic membrane
membrane between the outer and the middle ear; eardrum
vestibule
central cavity of the labyrinth, connecting the semicircular canals and the cochlea. The vestibule contains two structures, the saccule and the utricle, that help maintain equilibrium