Why is the blood pressure in the pulmonary arteries less than in the aorta? A. the expansion and contraction of the lungs pumps blood through its blood vessels. B. blood flowing to the lungs does not need to overcome gravity. C. pulmonary resistance is greater than the peripheral resistance. D. pulmonary resistance is less than peripheral resistance
Option D. Pulmonary resistance is less than peripheral resistance i.e. why the blood pressure in the pulmonary arteries less than in the aorta.