Q.1.(v).The flow of the blood in different chambers of the heart shows:
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1. Blood flows only once in the heart during each cycle in the body.
2. Blood flows twice in the heart during each cycle in the body.
3. There is mixing of oxygenated and deoxygenated blood in the ventricles.
4. There is complete separation of oxygenated and deoxygenated blood in ventricles.
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The heart consists of four chambers in which blood flows. ... The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
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