At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?
A. relative lack of smooth muscles
B. presence of valves
C. proximity of the veins to lymphatic’s
D. thin endothelial lining
Answer:A
At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?
A. relative lack of smooth muscles B. presence of valves C. proximity of the veins to lymphatic’s D. thin endothelial lining