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Cardiac Cycle

The cardiac cycle refers to the series of events that take place during one complete heartbeat. It involves two main phases: contraction (systole) and relaxation (diastole). During systole, the heart muscles contract, pumping blood out of the heart; specifically, the left ventricle sends oxygen-rich blood to the body, while the right ventricle sends oxygen-poor blood to the lungs. In diastole, the heart relaxes, allowing the chambers to fill with blood. This cycle ensures a continuous flow of blood, delivering oxygen and nutrients while removing waste products from the body, maintaining overall health.

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    The cardiac cycle refers to the series of events that occur during one heartbeat. It involves two main phases: diastole and systole. During diastole, the heart relaxes and fills with blood as the chambers expand. In systole, the heart contracts, pumping blood out to the lungs and the rest of the body. This cycle is crucial for maintaining blood circulation and delivering oxygen and nutrients to tissues. The heart’s valves play a key role in ensuring blood flows in the correct direction during these phases. Overall, the cardiac cycle is essential for effective heart function and overall health.