How is mean arterial pressure increases?

Explanation

Mean arterial pressure is a function of cardiac output and resistance in the arteriles
2. The primary reflex pathway for homeostatic controls of mean arteial pressure is the baroreceptor reflex
3. The barorecptor reflex functions very morning when you get out of bed
4. When you are lying flat the gravitational force is evenly distributed
5. When you stand up, gravity causes blood to pool in the lower extremities.