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HCTA MedTerm ch11

HCTA MedTerm Ch 11 Ear

QuestionAnswer
acous/o, audi/o hearing
aer/o air/gas
auri, oto ear
cerumin/o wax
salping/o eustachain tube or uterine tube
tympan/o, myring/o eardrum
-acusis (suffix) hearing condition
external ear outter surfaces collecting sounds
pinna auricle (little ear) projecting part of external ear (pinna = feather)
external auditory meatus, or canal collects sounds from pinna
middle ear vibrate sound from tympanic membrane to inner ear
tympanic membrane (TM) eardrum
malleus, incus, stapes hammer, anvil, stirrup (ossicles)
auditory tube aka? eustachian tube goes from middle ear to pharynx (throat)
labyrinth aka: inner ear, fluid-filled, bony and membranous passages relay sound to auditory nerves, balance and equilibrium too
chochlea coiled structure of inner ear containing organ of corti
perilymph fluid of bony labyrinth of inner ear
endolymph fluid w/in membranous labyrinth of inner ear
Organ of Corti In the Inner Ear, contains Hair Cell Receptors for Hearing
Vestibule Middle part of inner ear, in front of semicircular canals, and behind cochlea, contains the Utricle and Saccule, functions to provide Balance and Equilibrium
Utricle Lgr of 2 sacs w/in mem-labyinth of vestibule
saccule sm'r of 2 sacs w/in mem-labyrinth of vestibule in inner ear
semicircular canals three canals w/in inner ear, receptor cells gen nerve impulses w/ body movement
Otalgia, Otodynia earache
Otorrhagia bleeding from ear
Otorrhea purulent dc from ear
tinnitus ear ringing
vertigo dizziness
myringitis, tympanitis inflammation of eardrum
aerotitis media inflammation of middle ear b/c change in atm press
otosclearosis hardening of bony tissue in ear
acoustic neuroma benign tumor of auditory nearve 8th cranial nerve, causes vertigo, tennitus, hearing loss
labyrinthitis inflammation of labyrinth (inner ear)
Meniere Dz Dz of inner ear of excessive buildup of edolymphatic fluid causes vertigo, tinnitus, N&V, hearing loss
Prebyacusis, prebycusis old age hearing loss
Created by: HCTA
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