What are the main components of human circulatory system? Write the functions of
each.
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Answer:
Lungs heart and blood capillaries
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The essential components of the human cardiovascular system are the heart, blood and blood vessels. It includes the pulmonary circulation, a "loop" through the lungs where blood is oxygenated; and the systemic circulation, a "loop" through the rest of the body to provide oxygenated blood.
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