The falling 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 falling phase of the action potential, or repolarization, is due to potassium ions leaving the cell through open voltage-gated potassium channels. This leads to a decrease in membrane potential, returning the cell to its resting state.

The Falling Phase of the Action Potential Is Due to