What are the organs of the circulatory system?
1 Answer
Jun 11, 2018
The main organ is the heart.
Explanation:
The heart constantly pumps blood throughout the body. The blood travels through blood vessels which are organs of the circulatory system.
These are the types of blood vessels:
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arteries: blood vessels that carry away blood from the heart to the rest of the body
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arterioles: deliver blood to capillaries; controls how much blood enters the capillaries
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capillaries: tiny blood vessels that connect arterioles to venules; thin walls that allow nutrients and oxygen to the tissues and absorb carbon dioxide and waste products
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venules: collect blood from capillaries and drain into veins
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veins: blood vessels that carry blood back to the heart
