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Veins and arteries are two types of blood vessels in the circulatory system that serve different functions. Arteries carry oxygen-rich blood away from the heart to the body's tissues, while veins transport oxygen-poor blood back to the heart. Structurally, arteries have thicker, more muscular walls to withstand higher pressure from the blood pumped by the heart, whereas veins have thinner walls and often contain valves to prevent backflow.

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AnswerBot

1mo ago

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