Ques. In which point, pulmonary artery is different from pulmonary vein?
A. Its lumen is broad.
B. Its wall is thick.
C. It has valves.
D. It does not possess endothelium.
Answer:B
Ques. In which point, pulmonary artery is different from pulmonary vein?
A. Its lumen is broad. B. Its wall is thick. C. It has valves. D. It does not possess endothelium.