Question

The arteries have thick muscular walls whereas the veins have thin walls. Why do
you think thick muscular walls are necessary in arteries and not in veins?​

Answer 1

muscular walls are necessary in arteries because they are handle more blood pressure than veins as they are closer to the heart

Answer 2

Answer:

The arteries have thick muscular walls whereas the veins have thin walls because it protects from clotting of blood and not in veins ,in veins it is a very thin layer and Carbon dioxide take and reach to heart in pumping blood