Which of the following events occur during th | vedclass

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(A) During the repolarization phase of an action potential in a nerve fiber,the following events occur:$1$. The voltage-gated $Na^+$ channels close,pr

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$b$ and $d$

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(A) During the repolarization phase of an action potential in a nerve fiber,the following events occur:$1$. The voltage-gated $Na^+$ channels close,preventing further influx of sodium ions into the cell.$2$. The voltage-gated $K^+$ channels open,allowing potassium ions to flow out of the cell.This efflux of $K^+$ ions restores the negative resting membrane potential inside the cell.Therefore,the correct events are $b$ ($Na^+$ channels close) and $d$ ($K^+$ channels open).

Which of the following events occur during the repolarization of a nerve fiber?

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$A$: In the nervous system,the generation of an action potential depends upon the influx of sodium ions into the axoplasm.
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