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chap 6


acous/o, audi/o hearing
aur/i , ot/o ear
myring/o, tympan/o eardrum
aer/o gas or air
salping/o tube
cerumin/o wax
-acusis hearing condition
External Ear collects sound
auricle (pinna) projected part of the ear
external acoustic meatus passage for sounds collected from the auricle to the tympanic membrane
external auditory meatus passage for sounds collected from the auricle to the tympanic membrane
tympanic membrane/ tympanum drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear
eustachian/ 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/ labyrinth intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing and 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 that fills the membranous labyrinth of the internal ear
otalgia, otodynia earache
otorrhagia bleeding from the ear
otorrhea purulent drainage of the ear
tinnitus a ringing or buzzing in the ear: jingling
vertigo a turning round; dizziness
cerumen impaction excessive buildup of wax in the ear that often reduces hearing acuity, especially in elderly persons
eustachian obstruction blockage of the eustachian (auditory) tube, usually as a result of infection
histamine a regulatory body substance released in allergic reactions, causing swelling and inflammation of tissue;
ear lavage irrigation of the external ear canal, often to remove excessive buildup of cerumen
auditory prosthesis any internal or external device that improves or substitutes for natural hearing
pneumatic otoscopy otoscopic observation of the tympanic membrane as air is released into the external auditory meatus
brainstem auditory evoked potential (BAEP) electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; used to assess hearing in newborns
Meniere's disease disorder of the internal ear resulting from excessive buildup of endolymph, causing episodes of vertigo, tinnitus, nausea, vomiting, and hearing loss
Created by: keeyannamcghee
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