what is vein,,,,,,,,,,,
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- Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. Arteries and veins are two of the body's main type of blood vessels. These vessels are channels that distribute blood to the body.
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Explanation:
Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
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