A: In the nervous system,the generation of an | vedclass

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(C) The generation of an action potential in the nervous system occurs due to the rapid influx of $Na^+$ ions into the axoplasm through voltage-gated

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Assertion is correct,but Reason is incorrect.

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(C) The generation of an action potential in the nervous system occurs due to the rapid influx of $Na^+$ ions into the axoplasm through voltage-gated sodium channels.This influx causes depolarization of the axonal membrane.The Reason statement is incorrect because the influx of $Na^+$ ions is driven by the electrochemical gradient,not by the efflux of $K^+$ ions.In fact,during the depolarization phase,$K^+$ channels are typically closed.

$A$: In the nervous system,the generation of an action potential depends upon the influx of sodium ions into the axoplasm.
$R$: The influx of sodium ions during nerve impulse generation is due to the efflux of potassium ions.

Similar Questions

The potential difference between the outside and inside of a nerve fiber before excitation is known as:

$A$ nerve impulse is generated in a nerve fiber when the membrane becomes more permeable to:

During the propagation of a nerve impulse,the action potential results from the movement of

In which condition,the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions?

Define the following terms:
$(1)$ Nerve impulse
$(2)$ Resting potential

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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.$R$: The influx of sodium ions during nerve impulse generation is due to the efflux of potassium ions.