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Audiology Praxis Study Guide | 437 Questions with 100% Correct Answers | Verified | Latest Update 2024 $13.49   Add to cart

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Audiology Praxis Study Guide | 437 Questions with 100% Correct Answers | Verified | Latest Update 2024

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Audiology Praxis Study Guide | 437 Questions with 100% Correct Answers | Verified | Latest Update 2024

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  • October 16, 2024
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Audiology Praxis Study Guide | 437 Questions
with 100% Correct Answers | Verified | Latest
Update 2024




The tympanic membrane TM is describe - ✔✔elastic


thin


cone-shaped


flexible & tough


vibrates in response to sound pressure




How does the TM respond to frequencies? - ✔✔responds entirely to

low frequencies

but only certain portions to high frequencies




What is the ossiculur chain composed of? - ✔✔it is suspended in the middle

ear by ligaments, it is composed of 3 tiny bones: the malleus, incus, and stapes

,What is the 1st and largest of the three bones? - ✔✔it is the malleus-Latin for

hammer.




Because of the attachment, the vibrations of the tympanic membrane are

transmitted to what? - ✔✔to the malleus




One end of malleus is embedded where? - ✔✔tymapnic membrane




The malleus is attached to the 2nd bone called what? - ✔✔the inclus (Latin

for anvil)




Is there much movement between the malleus and the incus? - ✔✔The

malleus and the incus are connected in a tight joint that permits very little

movmenet

,The incus is attached to a third bone called what? - ✔✔it is called the stapes

(latin for stirrup)




The footplate, or the other end of the stapes, is inserted into what? -

✔✔inserted into the oval window




the oval window leads to what? - ✔✔the oval window is a small opening

that leads to the inner ear




The ossiculuar chain amplifies incoming sound by how many dB before

transmitting it into what? - ✔✔the ossiculuar chain amplifies incoming sound

by approximately 30dB before transmitting it into fluids of the inner ear




Y or N Does the ossicular chain transmit sound efficiently without distortion? -

✔✔yes

, There are 2 small muscles in the middle ear that dampen the vibrations of the

tympanic membrane and the ossicular chain. What are they? -

✔✔tensor tympani, and stapedius muscle




The tensor tympani is innervated through what CN? - ✔✔cranial nerve 5




The stapedius muscle, the smallest muscle in the body, is innervated by what CN?

- ✔✔by CN 7-the facial nerve




What does the stapedius muscle do to the ossicular chain? - ✔✔it stiffens

the ossicular chain so that its vibrations are reduced.




The tensor tympani muscle tenses what? - ✔✔the tensor tympani muscle

tenses the tympanic membrane so its vibrations are reduced

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