Q. Pulmonary artery differs from pulmonary vein in having
A) No endothelium
B) Strong valves
C) Branner’s cells
D) Thick muscular walls
Explanation
Pulmonary artery differs from pulmonary vein in having thick muscular wall. The veins have internal semilunar valve to prevent backflow of blood.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.