Biology, asked by namita6123, 1 year ago

why veins have valves in them

Answers

Answered by mahek020603

4

To prevent backward flow of blood

garvitgupta75: Veins have low pressure ,while flow of blood there is possiblity of blood backflow.so, to prevent backflow veins contain valves

Answered by BamanBoy

8

To slow the flow of blood in vein which has thin wall.

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