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Hearing102
lecture/powerpoint on hearing
Question | Answer |
---|---|
Auricle | collects sound |
Tympanic Membrane | ear drum |
Eustatian tube | controls fluid |
Middle ear | consists of ossicles, malleus, incus and stapes |
Temporal bone | contains 7th and 8th cranial nerves |
Hearing loss can be treated in 2 different ways | medically and surgically, or with hearing aids |
conductive hearing loss | external problem |
sensorineural | damage to cochlea |
mixed | conductive and sensorineural |
functional | psychogenic |
clinical manifestations of hearing loss | tinnitus, innability to hear in groups, turning up volume on tv, changes in personality( think people are talking about them), unaware of surroundings, decreased ability to protect oneself, feeling of isolation, inability to communicate |
half of population __ and older have some sort of hearing loss | 50 and the cause is unknown |
changes of the ear include; | atrophy of tympanic membrane, cells degenerate, family heredity, and presbycusis |
factors affecting hearing loss | lifelong exposure to loud noises (jets, music, machinery), medications (aminoglycosides, ASA, quinine), psychogenic factors and other diseases such as diabetes |