List the three stages of an action potential in a cardiac muscle cell.
A)rapid depolarization,plateau,and hyperpolarization
B)plateau,repolarization,and hyperpolarization
C)slow depolarization,plateau,and hyperpolarization
D)rapid depolarization,repolarization,hyperpolarization
E)rapid depolarization,plateau,and repolarization

Question

Quizplus · Accepted Answer

The three stages of an action potential in a cardiac muscle cell are rapid depolarization, plateau, and repolarization. Hyperpolarization is not a stage in a cardiac muscle cell action potential. Choice A includes hyperpolarization, which is incorrect. Choice B is incorrect because it lists repolarization before plateau. Choice C mentions slow depolarization, which is not a characteristic of cardiac muscle cell action potentials. Choice D includes hyperpolarization as the third stage, which is incorrect.

List the Three Stages of an Action Potential in a Cardiac