Biology, asked by tania7, 1 year ago

Explain the cardiac cycle.

Answers

Answered by Sarthak1710
1
you should look for the explanation on YouTube, as it won't easy for you to understand just by reading
Answered by writersparadise
4
Step 1 : First Diastole

De-Oxygenated blood from Superior and Inferior Vena cava flows into right atrium. The atria contracts and the blood flows into the right ventricles through the open atrioventricular valves. The tricuspid valve prevents back flow of blood.

Stage 2 : First Systole

The right ventricle contracts and the de-oxygenated blood flows through the arteries into the lungs. The blood absorbs oxygen and is brought through veins to the left atrium

Stage 3 : Second Diastole

The oxygenated blood from the left atrium flows into the left ventricle. The mitral valve prevents back flow.

Stage 4 : Second Systole

Oxygenated blood is pumped from the left ventricle through the aorta through various parts of the body



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