The receptor potential of a hair cell is triggered by cilia movements that
a. allow the entry of sodium ions into the hair cell.
b. open a channel to potassium in the insertional plaque.
c. allow the efflux of potassium ions out of the hair cell.
d. close a channel to potassium in the insertional plaque.
e. allow chloride ions to flow into the cilia.
Answer: b. open a channel to potassium in the insertional plaque.
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