The action potential while the propagation of a nerve impulse is due to the movement of________

Q. The action potential while the propagation of a nerve impulse is due to the movement of________.

1. K+ ions from intracellular to extracellular fluid
2. K+ ions from extracellular to intracellular fluid
3. Na+ ions from intracellular to extracellular fluid
4. Na+ ions from extracellular to intracellular fluid

Answer: Na+ ions from extracellular to intracellular fluid