These vessels take the blood back most directly to the heart.

Name: These vessels take the blood back most directly to the heart.
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Veins are the vessels that take the blood back most directly to the heart. They have valves that prevent the backflow of blood and help in the one-way flow towards the heart. Arteries and arterioles carry blood away from the heart, whereas venules are smaller blood vessels that collect blood from capillaries and join to form veins.

These Vessels Take the Blood Back Most Directly to the Heart