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Med Terminology: CH6
Sydney Henderson
Term | Definition |
---|---|
acous/o | hearing |
audi/o | hearing |
aur/i | ear |
ot/o | ear |
myring/o | eardrum |
tympan/o | eardrum |
aer/o | air or gas |
salping/o | tube |
cerumin/o | wax |
-acusis | hearing condition |
External Ear | outer structures of ear that collect sound |
auricle | projected part of external ear |
pinna | projected part of external ear |
external acoustic meatus | 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 |
Middle Ear | structures in the middle of the ear that vibrate sound from the tympanic membrane to the internal ear |
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 (stirrups) | 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 |
Internal Ear | intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body movement and position to maintain balance and equ |
labyrinth | intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body movement and position to maintain balance and equ |
cochlea | coiled tubular structure of the internal ear that contains the spiral organ of Corti; cochlear duct is the membranous tube within the cochlea |
perilymph | fluid that fills the bony labyrinth of the internal ear |
endolymph | fluid within the membranous labyrinth of the internal ear |
spiral organ | structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing |