Veins do not require thick walls
as they do not have to work harder
they are required only occasionally
blood pressure declines while it gets to veins
blood pressures is immense
Veins carry blood back into the heart and for it less pressure is required. Therefore, veins have comparatively thinner walls than arteries.
Veins have thick, elastic and muscular walls.
Why arteries have thick, elastic walls, while veins have thin walls?
Why veins have thin walls?
Why do veins have thin walls as compared to arteries?