If mean arterial pressure is kept constant while a small artery changes its radius from 1 mm to 2 mm, what will happen? A. blood volume flow rate through the artery will double. B. blood volume flow rate through the artery will increase to four times its previous value. C. blood volume flow rate through the artery will be sixteen times the original value. D. blood speed will halve so there will be no change in volume flow rate.
Option C. If mean arterial pressure is kept constant while a small artery changes its radius from 1 mm to 2 mm then the blood volume flow rate through the artery will be sixteen times the original value.
