4. How is blood circulated in the body?
Answers
Answer:
How is blood circulated in the body?
Blood moves through the arteries and veins in only one direction. The opening and closing of valves in the heart’s chambers work in such a way to make certain that blood is carried throughout the body in a circle known as circulation. The heart pumps blood through vessels transporting oxygen and nutrients to all the parts of the body. Larger blood vessels, called arteries, carry oxygen rich blood from the heart. Blood then flows from the smaller arteries in the body into even smaller blood vessels called capillaries, where oxygen is dropped off and carbon dioxide is picked up. For the return trip, blood in the capillaries flows into small veins, which flow into larger veins that lead back to the heart. Blood travels from there to the lungs, where it releases carbon dioxide, a cellular waste product.
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Answer:
the explanation is here
Explanation:
Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta
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