The _________________ carry oxygen rich blood away from the heart, while the ________________ carry oxygen-depleted blood back towards the heart.

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Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart to be reoxygenated. Arteries and veins are two of the body's main types of blood vessels.
However, there is one exception: pulmonary arteries are the only arteries that carry deoxygenated blood, and the pulmonary veins are the only veins that carry oxygenated blood. If you see "pulmonary", which means "lungs", then the roles are switched.
You may use the diagram below as a visual reference for how blood travels through the body.
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The _________________ Carry Oxygen Rich Blood Away from the Heart