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chap 6
vocab
| Term | Definition |
|---|---|
| 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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