Question

Arteries can be distinguished from veins because the arteries have:

• A. Thicker walls
• B. More blood cells
• C. More plasma
• D. Thinner walls

Answer 1

Answer: (A)

Thicker walls

Arteries have more muscular walls than veins because the arteries have to carry the oxygenated blood from the heart to the other parts of the body at high pressure and velocity than the veins. The vein carries deoxygenated blood from the different parts of the body to the heart. An artery has to pump blood throughout the body, hence has a thick muscular wall.

So, option 'A' is correct.