What is the pacemaker of the heart?
A) AV node
B) SA node
C) Purkinje fibers
D) nodal pathways
E) bundle of His

Name: What is the pacemaker of the heart? A) AV node B) SA node C) Purkinje fibers D) nodal pathways E) bundle of His
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Quizplus · Accepted Answer

The SA (sinoatrial) node is known as the pacemaker of the heart because it generates the electrical impulses that initiate the heartbeat, setting the rhythm for the rest of the heart.

What Is the Pacemaker of the Heart