Veins have valves at regular intervals because
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The main function of the valves in veins is to prevent back flow of blood.
Blood in veins is under much lower pressure as it is returning to the heart from the various organs and tissues and so has a risk of back flow if the valves are not present to prevent it.
Hope it helps! ^^
Blood in veins is under much lower pressure as it is returning to the heart from the various organs and tissues and so has a risk of back flow if the valves are not present to prevent it.
Hope it helps! ^^
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Veins have valves at regular intervals so that the blood do not flow back to the heart
the valves in the veins do not allow the backwards movement of blood
the valves in the veins do not allow the backwards movement of blood
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