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29 January, 18:34

Veins have a much lower blood pressure than arteries. What prevents backflow of blood in veins?

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  1. 29 January, 22:03
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    Having traveled through the arteries and capillaries, the blood have already lost considerable amount of pressure when it is to travel through the veins. The veins are composed of one-way valves as when the veins are squeezed, it pushes the blood to the valves.
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