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We Get Around

blood vessels, arteries, veins, capillaries

Circulatory System Unit

Synopsis

Blood travels through blood vessels like cars travel down streets. Arteries are for getting the blood away from your heart and veins are for taking it back toward the heart. Capillaries are for getting things your cells need to them and getting things they don't need away out of your body.

Science Vocabulary in this Article

  • blood vessels

  • arteries

  • veins

  • capillaries

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