Question

why are the walls of artiries thicker than veins

Answer 1

Answer:

a. Arteries carry oxygenated blood from the heart to the different body parts. Blood emerges from the heart under high pressure. In order to withstand this pressure, arteries have thick walls.

b. Veins carry deoxygenated blood from the body parts back to the heart. Blood flowing through the veins is not under high pressure. Therefore, veins do not have thick walls. They are thin-walled blood vessels.

Answer 2

Answer:

Because of the lower pressure, vein walls are thinner. However, veins also have one-way stop valves to keep blood from flowing backwards.

Explanation: