Starling Forces (Midterm 2) Flashcards
What are Starling Forces?
the four forces that determine the net filtration pressure
Which forces are directed into the capillary?
capillary osmotic pressure and interstitial fluid hydrostatic pressure
Which forces are directed out of the capillary?
capillary hydrostatic pressure and interstitial fluid osmotic pressure
What are the forces on the arterial side of the capillary?
hydrostatic pressure
In which direction are the forces on the arterial side pointing towards?
IF = in CAP = out
What are the forces on the venous side of the capillary?
osmotic pressure
In which direction are the forces on the venous side pointing towards?
IF = out CAP = in
What is the difference between filtration and absorption?
filtration is movement of solutes and water out to IF || absorption = movement of solutes/water into cell due hydrostatic pressure
Which forces drive filtration?
CAP hydrostatic pressure and IF osmotic pressure
Which forces drive absorption?
IF hydrostatic pressure and CAP osmotic pressure
What is capillary hydrostatic pressure?
hydrostatic force inside capillary
What is capillary osmotic pressure?
osmotic pressure inside capillary = draws fluids into capillary
What is interstitial fluid hydrostatic pressure?
hydrostatic force in interstitial fluid
What is interstitial fluid osmotic pressure?
osmotic pressure of interstitial fluid = draws fluid out of capillary
What is hydrostatic pressure? What controls the magnitude of this pressure?
causes ventricular squeezing that pushes blood thru || pressure is solely in relation to the walls of the ventricles || heart contractions control the magnitude of this pressure
