The Body Fluid Compartments: Extracellular and Intracellular Fluids; Edema

The cells of complex multicellular organisms are able to survive and function only within a narrow range of composition of the ECF, the internal fluid environment that bathes them.The maintenance of a relatively constant volume and a stable composition of the body fluids is essential for homeostasis. Some of the most common and important problems in clinical medicine arise because of abnormalities in the control systems that maintain this relative constancy of the body fluids. Here, we discuss the overall regulation of body fluid volume, constituents of the extracellular fluid, acid-base balance, and control of fluid exchange between extracellular and intracellular compartments.

At the end of the lesson students will be able to learn about;

FLUID BALANCE CONCEPT

BODY FLUID COMPARTMENTS

CONSTITUENTS OF EXTRACELLULAR AND INTRACELLULAR FLUIDS

MEASUREMENT OF FLUID VOLUMES IN THE DIFFERENT BODY FLUID COMPARTMENTS

DETERMINATION OF VOLUMES OF SPECIFIC BODY FLUID COMPARTMENTS

REGULATION OF FLUID EXCHANGE AND OSMOTIC EQUILIBRIUM BETWEEN INTRACELLULAR AND EXTRACELLULAR FLUID

VOLUME AND OSMOLALITY OF EXTRACELLULAR AND INTRACELLULAR FLUIDS IN ABNORMAL STATES

CLINICAL ABNORMALITIES OF FLUID VOLUME REGULATION: