Question

What feature do veins have that arteries do not?

Answer 1

.The most important difference between veins and arteries is that veins carry oxygenated blood while arteries carry oxygenated blood.Veins have valves and have thin walls.

Answer 2

valves: veins have valves arteries do not have...
lumen: in arteries it is small while in veins it is large...
walls: in arteries walls are thick ..in veins walls are thin...
blood: veins have deoxygenated blood (except pulmonary vein) .. while arteries have oxygenated blood...(except pulmonary artery)...