Question

what is cardiac cycle? explain briefly a bout the different stages in it​

Answer 1

here's your answer ⭐

The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole. After emptying, the heart immediately relaxes and expands to receive another influx of blood returning from the lungs and other systems of the body, before again contracting to pump blood to the lungs and those systems.

The cardiac cycle has 3 stages:

1. Atrial and Ventricular diastole (chambers are relaxed and filling with blood)
2. Atrial systole (atria contract and remaining blood is pushed into ventricles)
3. Ventricular systole (ventricles contract and push blood out through aorta and pulmonary artery)

hope it helps you

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Answer 2

Answer:

The cardiac cycle is the performance of the human heart from the beginning of one heartbeat to the beginning of the next.