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Why do you have veins?

Updated: 8/17/2019
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Wiki User

13y ago

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Arteries carry blood from the heart around the body where it distributes nutrients and oxygen. The blood then travels to the liver and kidneys to be cleaned. On its way back to the heart the passages it uses are called veins because they are smaller and all the flow is toward the heart, not from it.

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Wiki User

13y ago
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Q: Why do you have veins?
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