The pacemaker function in the mammalian heart is performed by the
A) sinoatrial node.
B) atrioventricular node.
C) conducting fibers.
D) bundle fibers.
E) ventricular mass.

Name: The pacemaker function in the mammalian heart is performed by the A) sinoatrial node. B) atrioventricular node. C) conducting fibers. D) bundle fibers. E) ventricular mass.
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Question

Quizplus · Accepted Answer

The sinoatrial node (SA node) is known as the pacemaker of the mammalian heart, as it initiates the electrical impulses that regulate the heartbeat.

The Pacemaker Function in the Mammalian Heart Is Performed by the