The sinoatrial node, located in the right atrium of the heart, is often called the ________.
A) pacemaker
B) pericardial cavity
C) atrioventricular (AV) bundle (bundle of His)
D) auricle

Question

Quizplus · Accepted Answer

The sinoatrial node (SA node) is often called the pacemaker of the heart, as it is responsible for initiating the electrical impulses that regulate the heart's rhythm.

The Sinoatrial Node, Located in the Right Atrium of the Heart