Science, asked by Anonymous, 26 days ago

give reason about valves are present in veins

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Answered by anukrititiwari04

4

Unlike arteries, veins contain valves that ensure blood flows in only one direction. But, Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction. Valves also help blood travel back to the heart against the force of gravity.

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