Write one structural difference between the composition of artery and veins.
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Arteries, like veins, are tube-shaped vessels that carry blood in the body. The chief difference between arteries and veins is the job that they do. Arteries carry oxygenated blood away from the heart to the body, and veins carry oxygen-poor blood back from the body to the heart.
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Arteries have very thick walls to withstand very high pressure as oxygenated has more pressure than deoxygenated ones. Meanwhile, veins have thin walls. Veins have valves present inside them to prevent the back flow of the bloods and arteries do not have one.
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