IMMUNOLOGY

Detailed explanation-1: -Fluid found in the spaces around cells. It comes from substances that leak out of blood capillaries (the smallest type of blood vessel). It helps bring oxygen and nutrients to cells and to remove waste products from them.

Detailed explanation-2: -Interstitial fluid is the body fluid between blood vessels and cells, containing nutrients from capillaries by diffusion and holding waste products discharged by cells due to metabolism.

Detailed explanation-3: -Extracellular fluid (ECF) surrounds all cells in the body. Extracellular fluid has two primary constituents: the fluid component of the blood (called plasma) and the interstitial fluid (IF) that surrounds all cells not in the blood.

Detailed explanation-4: -The interstitial space that lies between blood vessels and cells provides the fluid and structural environment surrounding those cells. Under most conditions in most tissues, fluid from the vascular space continually filters from the microvessels into the interstitial space and is not reabsorbed (1).

Detailed explanation-5: -The intracellular fluid is the fluid contained within cells. The extracellular fluid-the fluid outside the cells-is divided into that found within the blood and that found outside the blood; the latter fluid is known as the interstitial fluid.