Science, asked by Ananyajha24, 4 months ago

veins have valves which allow blood to flow in one direction why?​

Answers

Answered by teemyonaar
2

Answer:

as the pressure in veins is very less

just elaborate on this main points in your own words

Answered by abhaykakkattil71
1

Answer:

Veins have valves which allow blood to flood direction so that the blood move towards  the heart for the purification and oxygenation of the blood. The valves prevent the blood move backwards due to gravitational force.

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