The sinoatrial node (SAN) generates an action potential that is conducted through the right and left atria, resulting in atrial contraction. The impulse is then conducted through the atrioventricular node (AVN), activating the ventricular myocardium, resulting in contraction of the right and left ventricle.
SVC: superior vena cava; IVC: inferior vena cava; PV: pulmonary veins; LAA: left atrial appendage; RAA: right atrial appendage.
Graphic 57781 Version 2.0
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