Question

Why do arteries have thick walls and veins have thin walls? ​

Answer 1

Explanation:

Veins have much thinner walls than do arteries, largely because the pressure in veins is so much lower. Veins can widen (dilate) as the amount of fluid in them increases. Some veins, particularly veins in the legs, have valves in them, to prevent blood from flowing backward

Answer 2

Answer:

Arteries carry pure and oxygenated blood so that the blood pressure remains control and the blood cannot go anywhere in the body as it is oxygenated ..

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