Question

There are two types of blood vessels - Arteries and Veins. Both carry the blood, then why does one have thick and the other have thin walls.​

Answer 1

Explanation:

arteries have thicker walls because they carry blood with high pressure

Answer 2

Arteries have thick walls in comparison with veins. This is because arteries carry oxygenated blood from left ventricle to different body parts, so it is under high pressure.

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