Starling Forces

Question 1

FLuid exchange between plasma and interstitium

Answer 1

Occurs across walls of systemic capillaries

Bidriectional

Determiend by Starling forces

Question 2

Formula and each of variables

Answer 2

Jv=Kf((Pc-Pi)-(Pic-Pii))

Kf - filtration coefficient…determined by hydraulic permeability and capillary SA

Pc - capillary HS pressure
Pi - intersttial HS pressuve

Pic- capillary oncotic pressure
Pii - interstitial oncotic pressure

Question 3

Venous vs. arterial end

Answer 3

At venous end, all the same except the capillary hydrostatic pressure less

At arterial end, favros production INTO the interstitium (positive) while at venous end favors production into the capillary

Question 4

Localized edema effects

Answer 4

Venous obstruction - increased Pc

Inflammation - increased Pc and Kf

Lymphatic obstruction - increased Pii (prevents protein return to systmeic circulation)

Question 5

Generalized edema

Answer 5

Na retention and expansion of the entrie ECF