Lumen size is bigger in veins than arteries give reason
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4
Answer:
because blood in arteries flow in force and pressure so the walls of the arteries are thicker and lumen is smaller whereas blood in veins flow smoothly so the wall are thinner and lumen is bigger.
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1
Answer:
yes.
Explanation: There is much higher blood pressure in arteries compared to veins because arteries have to transport blood throughout the body, so smaller lumen in arteries allow the high pressure to be maintained throughout the body.
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