Which of the following is true about veins?
A. Venous valves are formed from the tunica media.
B. Up to 35% of total body blood is in venous circulation at any given time.
C. Veins have a small lumen in relation to the thickness of the vessel wall.
D. Veins are called capacitance vessels or blood reservoirs.
Answer:D
Which of the following is true about veins?
A. Venous valves are formed from the tunica media. B. Up to 35% of total body blood is in venous circulation at any given time. C. Veins have a small lumen in relation to the thickness of the vessel wall. D. Veins are called capacitance vessels or blood reservoirs.