athogenesis Total body water(TBW): 2/3 body weight intracellular 2 3 BW interstitial 3/4 extracellular 1/3 starling orce intravascular 1/4 Starling force depends on: hydrostatic pressure(静水压) colloid oncotic pressure(胶体渗透压)Pathogenesis Total body water(TBW): 2/3 body weight TBW intracellular 2/3 extracellular 1/3 Interstitial 3/4 intravascular 1/4 starling force Starling force depends on : hydrostatic pressure(静水压) colloid oncotic pressure（胶体渗透压）