Question

which structures in our body help in circulation of blood?
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Answer 1

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• The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.

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Answer 2

Answer:

Heart ( Blood vessels , Artery and veins )