define veins ::::::::::::::::;;:;
raghav6087:
veins are one of the part of the circulatory system.veins carry deoxygenated blood from body to the heart except 1 vein vena cava.veins are just below the skin and has valves in them to prevent backflow of blood as these veins don't undergo any pressure.
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veins are any of the tube forming part of the blood circulation system on the body ,carrying mainly oxygen depleted blood towards the heart ...
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hey mate....
veins r the blood capillaries with carries the Impure blood
hope it helps....
veins r the blood capillaries with carries the Impure blood
hope it helps....
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