In which of the following would blood pressure be the lowest?

a. large arteries

b. large veins

c. capillaries

d. arterioles

B. Large veins.

Explanation:

The blood always flows from the region of higher to the region of lower blood pressure. The blood is pumped from the heart into the arteries with the highest pressure and moves to arterioles, capillaries, venule and finally to veins. Since large veins such as superior and inferior vena cava collect the deoxygenated blood from body parts, they have the lowest blood pressure.