Which of the following acts is responsible fo | vedclass

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(B) The depolarisation of the neuron is primarily caused by the rapid influx of $Na^+$ ions into the cell.When a stimulus is applied,the voltage-gated

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Opening of voltage-gated $Na^+$ channel

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(B) The depolarisation of the neuron is primarily caused by the rapid influx of $Na^+$ ions into the cell.When a stimulus is applied,the voltage-gated $Na^+$ channels open,allowing $Na^+$ to move down its electrochemical gradient into the neuron.This influx of positive charge makes the inner side of the neuronal membrane less negative (or more positive) compared to the resting state.This change in membrane potential is known as depolarisation.

Which of the following acts is responsible for the depolarisation of the neuron?

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Assertion $(A)$: The axonal membrane of the neuron is more permeable to sodium ion $(Na^+)$ and nearly impermeable to potassium $(K^+)$.
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