Question

why valves are present in veins but not in arteries ?​

Answer 1

Answer:

Explanation:

Veins carry the blood to the heart and arteries carry blood from heart to other part of the body. Heart pushed the blood into arterial system with great force to reach our body parts such as arms, legs, brain, etc. This blood is use by the body parts for metabolism. Veins carry this used blood from body parts to the heart and it a slower system. And for taking this blood, veins needs to act against the gravity, for example leg. These valves inside veins prevent the back flow of blood so that they have unidirectional flow towards the heart. On the contrary arteries carry blood at high speed and force so no backflow of blood.

hope it helps

i wrote on the basis of my tb