3. Intro to fluid compartments: ECF and ICF

1:05 : Intracellular fluid or ICF
1:51 : Extracellular fluid or ECF (interstitial)
2:38 : Extracellular fluid or ECF (intravascular or plasma)
3:39 : All fluid compartments have same concentration of solutes

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This is an overview of the general features of the ICF (intracellular fluid) and the ECF (extracellular fluid), comparing things like their osmolarities and which ions tend to be present in high concentration.