What initiates the generation of a nerve impu | vedclass

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(B) The generation of a nerve impulse (action potential) is initiated by the rapid influx of sodium ions $(Na^+)$ into the neuron.When a stimulus is a

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$Na^+$

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(B) The generation of a nerve impulse (action potential) is initiated by the rapid influx of sodium ions $(Na^+)$ into the neuron.When a stimulus is applied to a site on a polarized membrane,the permeability of the membrane to $Na^+$ ions increases significantly.This leads to a rapid influx of $Na^+$ ions,which causes the reversal of the polarity at that site,known as depolarization.This change in membrane potential is the fundamental step in generating a nerve impulse.

What initiates the generation of a nerve impulse?

Similar Questions

What is resting potential?

During the conduction of a nerve impulse along a nerve fiber,what is the sequence of electrical charges on the inner surface of the plasma membrane?

At the site of stimulation,the charge of the inner and outer surface of the membrane becomes reversed due to:

$A$ : The imbalance in the concentration of $Na^+, K^+$ and proteins generates the resting potential.
$R$ : To maintain the unequal distribution of $Na^+$ and $K^+$,the neurons use electrical energy.

When a neuron is not conducting any impulse,the axonal membrane is comparatively more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.

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