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NEETZoology-Neural Control and Coordination

NEET Zoology Nerve Impulse MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Upon arrival of a stimulus, the polarised state of a resting neuronal membrane is reversed by

A

Efflux of K⁺ into ECF

B

Activation of Na⁺ – K⁺ pump

C

Influx of Na⁺ into axoplasm

D

Influx of K⁺ into axoplasm

Correct Answer

Option C

Detailed Explanation

The depolarization of a neuron occurs when Na⁺ ions flow into the axoplasm, reversing the membrane potential.

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