Question

write about arteries and veins and their functions?

Answer 1

arteries carry oxygenated blood to all the parts the body where  as veins carry deoxygenated  blood from body parts to the heart for oxygenation

Answer 2

arteries and veins are the blood vessels. there functions are: 
1)arteries walls are thick and veins has thin walls
2)vales are present in both arteries and veins
3)pressure in arteries is high when compared to veins
4)veins carry DE-oxygenated  from body parts to the heart exception case pulmonary veins carries oxygenated blood
5)arteries carries oxygenated blood exception case pulmonary arteries carries DE-oxygenated blood
the biggest artery is aorta (please mark it as best)