Reg of Arterial Pressure

Question 1

BaroR Nerve Activity Curve

Answer 1

Increased firing freq w/ increased MAP on sigmoid curve, w/ steepest slope around 100 where you want to reg it at

Question 2

Symp Arteriolar Vasoconstriction Effect on Capillaries

Answer 2

Lowers P, causing ISF to flow into capillaries further increasing fluid/blood volume

Question 3

3 Things That Lower Set Point in Medullary Center

Answer 3

Vasovagal Syncope
Deep Pain
Increased central venous pressure

Question 4

BP Set Point in terms of Symp Activity

Answer 4

Where influence of MAP on symp activity and influence of symp activity on MAP curves meet is where BP is

Question 5

2/3 Renal Mechs Decreased AP Decreases Urinary Output Rate

Answer 5

Decreased AP means decreased glomerular capillary pressure so decreased filtration rate
Decreased AP activates symp nerve activity, which causes RAS activation but also renal arteriolar constriction, leading back to decreased glomerular capillary pressure

Question 6

Urinary Output Curve by Arterial Pressure

Answer 6

Super effing steep