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Biology, 14.09.2019 00:30 thatkiddarius539
The receptor cells of the vestibular system are termed hair cells. signal transduction in the hair cell results from a cascade of several events. initially, when movement occurs, stereocilia are deflected. for excitatory signal transduction in hair cells, which of the following series of events is correct?
a. the stereocilia are compressed toward the cell surface by acceleration forces, k+ channels in the stereocilia close, ca2+ channels in the basolateral cell membrane close, and excitatory neurotransmitter is released
b. the stereocilia are bent away from the kinocilium, k+ channels in the stereocilia close, ca2+ channels in the basolateral cell membrane close, and excitatory neurotransmitter is released.
c. the stereocilia are rigid and do not move, endolymph motion forces the k+ channels in the stereocilia open, ca2+ channels in the basolateral cell membrane close, and excitatory neurotransmitter is released.
d. the stereocilia are bent toward the kinocilium, k+ channels in the stereocilia open, ca2+ channels in the basolateral cell membrane open, and excitatory neurotransmitter is released.
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