The atria receive the impulses from the

Question

Quizplus · Accepted Answer

The SA node, or sinoatrial node, is the natural pacemaker of the heart and is responsible for initiating the impulse that begins the cardiac cycle. It is located in the right atrium and sends an electrical signal to the atria, causing them to contract and pump blood into the ventricles. Therefore, the atria receive the impulses from the SA node. The AV node, bundle branches, and ventricular fibers are involved in the propagation of the impulse from the atria to the ventricles, but they do not directly send impulses to the atria.

The Atria Receive the Impulses from the