What is the pacemaker of the heart?
A) Sinoatrial(SA) node
B) Autonomic nervous system
C) Atrioventricular(AV) node
D) Purkinje fibers

Name: What is the pacemaker of the heart? A) Sinoatrial(SA) node B) Autonomic nervous system C) Atrioventricular(AV) node D) Purkinje fibers
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Question

Quizplus · Accepted Answer

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

What Is the Pacemaker of the Heart