Which of the following is also known as the pacemaker of the heart?
A)atrioventricular node
B)Purkinje fibers
C)atrioventricular bundle
D)sinoatrial node

Question

Quizplus · Accepted Answer

The sinoatrial (SA) node is often referred to as the pacemaker of the heart. It is responsible for initiating the electrical impulses that stimulate the heart to contract and pump blood. The other structures listed are part of the conduction system of the heart, but the SA node is the primary pacemaker.

Which of the Following Is Also Known as the Pacemaker