Another name for the "pacemaker" is the
A)atrioventricular (AV) node.
B)sino atrial (SA) node.
C)atrium.
D)ventrical.

Question

Quizplus · Accepted Answer

The sino atrial (SA) node is also known as the pacemaker of the heart. It initiates and regulates the electrical impulses that cause the heart to beat. The atrioventricular (AV) node is another part of the heart's electrical system, but it helps to relay the impulses from the SA node to the ventricles. The atrium and ventricles are chambers of the heart, but they are not synonymous with the pacemaker.

Another Name for the "Pacemaker" Is the