Question

If one arteriole constricts and nothing else changes, what will happen to mean arterial pressure (MAP)?

a. it increases
b. it decreases
c. no change

Answer 1

Pressure is generated when the blood is pushed out of the left ventricles into the arteries. The MAP is predicted by the SVR, CO, and CVP on the basis of the mentioned relationship that is dependent upon the association between the pressure, flow, and resistance: MAP = (CO * SVR) + CVP.

In case if one arteriole constricts and nothing else modifies than the mean arterial pressure increases.