Question

In human blood flows through __and__ and heart act as a__and ___​

Answer 1

Answer:

Blood flows through your heart and lungs in four steps: The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve. The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.

Answer 2

Explanation:

circulation (ser-kyuh-LAY-shun): The movement of the blood through the heart and around the body is called circulation. The heart takes less than 60 seconds to pump blood to every cell in your body.

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