Which of the Following Blood Vessels are Called Capacitance Vessels

Question

Which of the following blood vessels are called capacitance vessels?
A) Arterioles
B) Large arteries
C) Capillaries
D) Veins

Accepted Answer

Veins are called capacitance vessels because they have a high capacity to stretch or hold a large volume of blood without an increase in pressure. This is due to their thinner walls and the presence of valves that prevent backflow of blood. The large amount of blood stored in veins can be released into circulation quickly when needed, such as during exercise or hemorrhage.