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Why do veins have valves?

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Why do veins have valves?

Posted by Sakshi . 4 years, 9 months ago

CBSE > Class 10 > Science

4 answers

Suraj Gupta 4 years, 9 months ago

To prevent back flow of blood and allow the blood to flow only in one direction

Malaika Sharma 4 years, 9 months ago

In veins blood flows under low pressure.To prevent back flow of blood, veins have valves.

Raj Tiwari 4 years, 9 months ago

Because the blood flows from the veins under very high pressure to transport from one part to other..

Shilpa Panchal 4 years, 9 months ago

They have to face..

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