Question

indicate whether each statement is true or false. 1. during the refractory period of cardiac muscle, the cell is likely to generate another action potential. 2. the plateau phase of the action potential in cardiac muscle delays repolarization to the resting mem therefore the refractory period is prolonged.

Explanation:

1. During the refractory period, cardiac muscle cells cannot generate another action potential easily due to ion - channel states. So the first statement is false.
2. The plateau phase of the cardiac muscle action potential delays repolarization to the resting membrane potential, which in turn prolongs the refractory period. So the second statement is true.

Answer:

1. False
2. True