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Exam (elaborations)

Cd 443 Review: Questions With Complete Answers

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  • Cd 443

whats the preferred resonant frequency? - answer-3800 Hz middle ear consists of - answer--tympanic membrane (eardrum) -tympanic cavity (contains ossicles) -ossicles -muscles -eustachian tube tympanic membrane (eardrum) - answer-- thin - roughly circular - 3 layers - thickened outer rin...

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  • November 14, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Cd 443
  • Cd 443
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karimikelvin92
Cd 443 Review: Questions With Complete Answers

whats the preferred resonant frequency? - answer-3800 Hz


middle ear consists of - answer--tympanic membrane
(eardrum)
-tympanic cavity (contains ossicles)
-ossicles
-muscles
-eustachian tube


tympanic membrane (eardrum) - answer-- thin
- roughly circular
- 3 layers
- thickened outer ring (annulus)
- cone of light (otoscope)


superior wall - answer-cranium

, inferior wall - answer-jugular vein


lateral wall - answer-tympanic membrane


medial wall - answer-oval/round windows


anterior wall - answer-carotid artery


posterior wall - answer-mastoid


ossicles (within in tympanic cavity) - answer--malleus
(manubrium in tympanic membrane)
-incus
-stapes (footplate fits in oval window)


How many out of every 1,000 children born in the U.S. are born
with detectable hearing loss in one or both ears? - answer-2-3
children


how many US adults could benefit from hearing aids? - answer-
28.8 million

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