Question

why do veins have thin wall?

Answer 1

veins carry blood from the body to the heart. As they have low pressure so they have thin wall.

Answer 2

HERE IS YOUR ANSWER.....

Veins collect blood from different organs and bring it back to heart❤. They don't need thick walls because the blood is no longer under pressure. They have valves that ensure that the blood flows only in one direction.

HERE IS YOUR ANSWER.....
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