The heartbeat begins in the AV node.

Name: The heartbeat begins in the AV node.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The heartbeat actually begins in the SA node (sinoatrial node), which is considered the natural pacemaker of the heart. The electrical impulses generated by the SA node cause the heart to beat. The AV node (atrioventricular node) is involved in the electrical conduction pathway of the heart but is not the origin of the heartbeat.

The Heartbeat Begins in the AV Node