NEET Practice Questions

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

(a) K+ ions from extracelular fluid to intracellular fluid

(b) Na+ ions from intracellular fluid to extracellular fluid

(c) K+ ions from intracellular fluid to extracellular fluid

(d) Na+ ions from extracellular fluid to intracellular fluid

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