2-5. FLUID COMPARTMENTS
Regarding the human body, we speak of fluid compartments or spaces. These
are intracellular fluid, the interstitial fluid, and the circulating (plasma) fluid. See Figure
2-2 for a scheme of the body fluids and fluid compartments.
Figure 2-2. Scheme of the body fluids and fluid compartments.
a. Within the cell, we have seen that the major constituent is water. This fluid is
called intracellular fluid ("within the cell").