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Why Are Valves Present in Veins but Not Arteries

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Arteries dont have valves because they have to transport oxygenated blood from heart to body parts. Why are valves present in veins but not present in arteries. Pin On Biology 100 The veins have it while the arteries dont. . Why are valves present in veins but not in arteries. Veins bring back blood to heart from different parts of our body. So to prevent the backward flow of blood in veins valves are present. So as to prevent back flow of impure blood in veins thats the main reason why veins have vlaves whereas arteries dont. Hence the arteries have thicker wall than the veins. Valves also help blood travel back to the heart against the force of gravity. Unlike arteries veins contain valves that ensure blood flows in only one direction. Such shift from the reason at a decrease in addition to view of the blood accumulates in present in. Answer 1 Structural difference between arteries and veins. ...