The rising phase of the action potential is due to
A) calcium equilibrium
B) potassium efflux
C) potassium influx
D) sodium efflux
E) sodium influx

Question

Quizplus · Accepted Answer

The rising phase of the action potential is due to the influx of sodium ions into the cell through voltage-gated sodium channels. This causes depolarization of the cell membrane, leading to the rising phase of the action potential.

The Rising Phase of the Action Potential Is Due to