Biology, asked by chvishnu2004, 11 months ago

lumen size is bigger in the vein than others give reason

Answers

Answered by TheKingOfKings

10

Answer:

In veins the middle tunica (middle layer ) is thin that's why linen becomes wider.❤

Answered by sheetalmiddha

1

Answer:

it is because in veins blood doesn't move in high pressure. so to prevent back flow valves are present and lumen is wide not narrow

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