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11 Cards in this Set
- Front
- Back
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What is the Central Auditory Pathway?
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'spiral ganglion->auditory nerve->Ventral Nucleus->Superior Olive->LAteral Lemniscus->Inferior Lemniscus->MGN->Auditory Cortex
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What is Furosemide
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drug that decreases hair cell transduction, reducing the flexing of basilar membrane
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Name of stereocilia motor protein
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prestin
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Outline the Pathway for depolarization of a hair cell
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Tip links on stereocilia stretched--> TRPA1 ion channel opens---> entry of K+--> depolarization---> Opening of Voltage gated Ca2+ channels---_ influx causes release of neurotransmitter from synaptic vesicles---> postsynaptic neurite of spiral ganglion
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Response of the basilar membrane to sound (tonotopic map)
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Higher frequency perceived closest to the base because it is stiffer (narrower) and low frequency sounds perceived at the the Apex bc more flexible (wider)
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Define Helicotrema
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Opening at the apex of basilar membrane that connects the scala vestibuli with scala tympani
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Where is the Organ of Corti
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Sits on the basilar membrane and
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First neurons in the auditory pathway to fire action potentials
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Spiral ganglion cells
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Region with the auditory receptors
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Organ of Corti
http://www.youtube.com/watch?v=xMUl5CCoW6Y |
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Spiral ganglion cells receive input from from 95% of which cells?
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Inner hair cells,despite being outnumbered 3:1 by outer hair cells
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As stapes moves in and out it causes the_______ to flow
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perilymph
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