Question

WHAT IS cardiac cycle ? how many chambers are there is our heart ?

Answer 1

Answer:

The cardiac cycle is the performance of the human heart from the beginning 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, called systole.

A typical heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart.

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Answer 2

• From one heartbeat to the next, the cardiac cycle depicts how the human heart operates.
• It has two parts: diastole, when the heart muscle relaxes and fills with blood, and systole, when the heart muscle contracts and vigorously pumps blood.
• A normal heart has two chambers, one upper and one lower. The higher chambers, known as the right and left atria, receive incoming blood.
• The right and left ventricles, located at the bottom of the heart, are more muscular and pump blood out.