Heart.rar May 2026

Four valves (tricuspid, pulmonary, mitral, and aortic) act as one-way gates to keep blood flowing in the correct direction. ⚙️ How the "System" Works

Your heart functions as a dual-pump system that never stops, beating approximately : Heart.rar

The right and left ventricles pump blood out of the heart. Four valves (tricuspid, pulmonary, mitral, and aortic) act

A natural "pacemaker" called the sinoatrial (SA) node sends electrical impulses that tell the heart muscles when to contract. 📊 Heart Rate: The Vital Metric All About Heart Rate | American Heart Association Four valves (tricuspid

The right and left atria receive incoming blood.