Fluids

Module 2

-> Internal environment bathed in fluids

Body Fluids Compartments

1. Intracellular (ICF)
2. Inside cells
3. Extracellular (ECF)
4. Interstitial fluid
5. Plasma

Plasma - Pale yellow fluid, 92% H2O, 8% (proteins, ions, gas, nutrients & waste)

-> colloidal solution (suspended subs that doesn't settle)

Chemical Composition of Bodily Fluids

-> huge difference in ion concentrations between plasma & interstitial fluid vs intracellular fluid

-> small difference between plasma & interstitial fluid

-> composition maintained by selectively permeable membrane