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8 Cards in this Set
- Front
- Back
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Tensor Tympani
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Connected to malleus, innervated by motor trigem
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Stapedius
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Connected to stapies, innervated by facial nerve
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What is the path from hair cell to cortex
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-hair cell
1) spiral ganglion -cochlear nerve 2) Dorsal/ventral cochlear nuclei -Decussation -Lateral lemniscus 3) Inferior colliculus -commisure of inferior colliculus -brachium of inferior colliculus 4) medial geniculate nucleus -auditory radiation -posterior limb of internal capsule Primary motor cortex in tranverse temporal gyri of heschl |
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What is the tonotopic localization in the auditory cortex
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High tones - posterior medial
Low tones - anteriolateral |
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Superior olivary nucleus input output
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Located lateral to the trapezoid body. Input from ipsilateral and contralateral cochlear fibers.
Output is ipsilarteral and contralateral lateral lemniscus |
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Stria vascularis
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Source of endolymph
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Where do efferent neurons to the cochlea originate
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superior olivary nucleus
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What does superior olivary nucleus do
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1) Bilateral representation of sounds
2) Localization of sounds in space 3) Efferent fibers that modulate hair cells |
