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

1. K+ ions from extracellular fluid to intracellular fluid

2. Na+ ions from intracellular fluid to extracellular fluid

3. K+ ions from intracellular fluid to extracellular fluid

4. Na+ ions from extracellular fluid to intracellular fluid

Subtopic:  Origin of Resting Membrane Potential | Action Potential |
 69%
Level 2: 60%+
AIPMT - 2008
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