Question

Because the smooth muscle layer is thicker in arteries than in veins, which of the following is a logical conclusion?a. Arteries need more muscle than veins because the function of arteries is more important than the function of veins is.

b. Arteries are more fragile than veins and need to be protected with more muscle.
c. The function of arteries depends on constricting smooth muscles, whereas the function of veins does not.
d. Arteries and veins serve similar functions in most organisms.

Answer 1

Answer: Option C

Explanation:

Arteries have a great deal as it has more smooth muscles in their walls as compared to veins the wall is thick.

The blood in the arteries flows with effect of pressure and the thick walls helps in blood flow. The arteries need to constrict and relax which allows the movement of blood from heart to various parts of the body.

In veins there are no smooth muscle cells because there is no requirement of pressure when the blood moves from the various parts of the body to heart.