What structure normally paces the healthy heart?
A) Atrioventricular (AV) node
B) Sinoatrial (SA) node
C) Bundle of His
D) Purkinje fibers

Name: What structure normally paces the healthy heart? A) Atrioventricular (AV) node B) Sinoatrial (SA) node C) Bundle of His D) Purkinje fibers
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Question

Quizplus · Accepted Answer

Normally, the SA node, which is located in the upper portion of the right atrium, has the greatest degree of automaticity and therefore paces the heart.

What Structure Normally Paces the Healthy Heart