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keep you alive! they bring blood to the heart so it can get circulated round the body and lungs again

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14y ago

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What are the main blood vessels leading out of the heart and what do they do?

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What are the three components of the cardiovascular system?

The three components of the cardiovascular system are the heart, blood vessels (arteries, veins, and capillaries), and blood. The heart pumps blood through the blood vessels, which transport oxygen, nutrients, and waste products throughout the body.


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