What is the importance of the delay in the action potential in the AV node?
A) It allows the action potential to reach both ventricles at the same time.
B) It allows an action potential to reach the left atrium so both atria contract together.
C) It slows the rate of contraction of the ventricles.
D) It allows time for the atria to be filled with blood.

Question

Quizplus · Accepted Answer

The delay in the action potential in the AV node allows an action potential to reach the left atrium so both atria contract together. This is important for efficient blood flow and to prevent blood from pooling in the left atrium.

What Is the Importance of the Delay in the Action