ANATOMY

Detailed explanation-1: -extracellular fluid, in biology, body fluid that is not contained in cells. It is found in blood, in lymph, in body cavities lined with serous (moisture-exuding) membrane, in the cavities and channels of the brain and spinal cord, and in muscular and other body tissues.

Detailed explanation-2: -ECF Function The extracellular fluid is the common environment in which cellular operations can occur. The primary function of the ECF is the exchange of substances between the cells and the rest of the body. The fluid acts as a medium for the essential exchange of dissolved gases, nutrients, and electrolytes.

Detailed explanation-3: -Extracellular fluid (ECF) or extracellular fluid volume (ECFV) usually denotes all body fluid outside of cells, and consists of plasma, interstitial, and transcellular fluid. An extracellular matrix is an extracellular fluid space containing cell-excreted molecules, and they vary in their type and function.

Detailed explanation-4: -The intracellular fluid (ICF) and extracellular fluid (ECF) are separated by a semi-permeable cell membrane that is permeable to water but not to most solutes including electrolytes and proteins, which generally need transport systems to move across the membrane.