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Citow - Physiology > Hearing > Flashcards

Hearing Flashcards

1
Q

What innervates the tensor tympani?

A

branch of V3

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2
Q

What nerve innervates the stapedius?

A

CN VII

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3
Q

What is the acoustic reflex? What brain structure is associated with that reflex?

A

attenuation of loud sounds to protect the cochlea

superior olivary nucleus

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4
Q

Loud noises cause what type of hearing loss?

A

high frequency hearing loss

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5
Q

Elderly people develop what type of hearing loss?

A

high frequency discrimination

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6
Q

Ototoxic medications induce what type of hearing loss?

A

hearing loss at all frequencies

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7
Q

Describe the auditory pathway.

A

Spiral Ganglioin (1st order) > Dorsal and ventral cochlear nuclei (2) > contralateral (some ipsilateral) superior olivary nucleus (3) > lateral lemniscus (4) > inferior colliculus (5) > medial geniculate body (6) > auditory cortex (7)

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8
Q

What Brodmann’s area is the primary auditory cortex?

A

41

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9
Q

Localization of sound is mediated by what brain structure?

A

superior olivary nucleus

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Citow - Physiology (26 decks)

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