白城师范学院生物系 Figure 18.1 Fiuid within tho intracellular compartment is separated from fluid in the extracellular compartment by cell membranes. Whal membranes separale ihe various components of the extracellular fluid compartment? Total body wat 63% 37% Interstitial fluid Cell membrane Transcellular fluid 图52 Intracellular fluid Extracellular fluid compartment compartment白城师范学院生物系 图5-2