Auditory Tracts Flashcards

1
Q

scala tympani

A

largest section, contains perilymph, continuous with tympanic membrane

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2
Q

scala vestibuli

A

medium section, contains perilymph, continuous with vestibule

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3
Q

helicotrema

A

scala tympani and scala vestibuli no longer partitioned (at top of spiral

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4
Q

scala media

A

smallest section, contains endolymph, functional part of membranous labyrinth

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5
Q

inner hair cells

A

sound transduction

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6
Q

outer hair cells

A

fine tuning, controlled by efferents of medial superior olivary nucleus

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7
Q

tunnel of corti

A

contains fibers of CN VII, perilymph

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