Saturday, October 31, 2009

High risk of developing ...?

A sixteen year old person who likes to hunt , enjoys riding his motorcycle and plays drums in his local rock band is at high risk of developing :a.stimulation deafness
b.nerve deafness
c.the hunter's notch
d.all of the above
Answer:
stimulation deafness ...Stimulation deafness occurs when very loud sounds damage hair cells in the cochlea (as in "hunter's notch"). If you work in a noisy environment or enjoy loud music, motorcycling, snowmobiling, hunting, or similar pursuits, you may be risking stimulation deafness. The hair cells, which are about as thick as a cobweb, are very fragile and easily damaged. If a ringing sensation known as tinnitus follows exposure to loud sounds, chances are that hair cells have been damaged.
a

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