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

Question

Quizplus · Accepted Answer

The sinoatrial node (SA node) is the normal pacemaker of the heart. It is located in the upper part of the right atrium and it initiates the electrical impulses that regulate the rhythm of the heart.

The Normal Pacemaker of the Heart Is Located in the