The Normal Pacemaker of the Heart is Located In

Question

The normal pacemaker of the heart is located in
A) the Purkinje fibers.
B) the sinoatrial node.
C) the atrioventricular node.
D) the wall of the left ventricle.
E) both the left and right ventricles.

Accepted Answer

The normal pacemaker of the heart, which initiates each heartbeat, is the sinoatrial (SA) node located in the right atrium near the entrance of the superior vena cava.