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What is Cardiac Cycle about?
The cardiac cycle consists of coordinated events during one heartbeat, divided into systole (contraction) and diastole (relaxation). Key phases include atrial and ventricular systole and diastole, with specific events like isovolumetric contraction and relaxation, and ejection phases. The cycle duration is approximately 0.8 seconds at a normal heart rate of 72 beats per minute, with distinct heart sounds marking valve closures during these phases.
- Author
- drsanha25
- Language
- EN