GENERAL HISTOLOGY

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: -Throughout your body, interstitial fluid (fluid found in the spaces around cells) leaks from blood capillaries into your tissues. Lymph capillaries pick up this fluid and help return it to your circulatory system.

Detailed explanation-3: -In the extracellular fluid are the ions and nutrients needed by the cells to maintain cell life. Thus, all cells live in essentially the same environment the extracellular fluid. For this reason, the extracellular fluid is also called the internal environment of the body.

Detailed explanation-4: -The major driving force for fluid movement from the intravascular space to the interstitial space is the hydrostatic pressure difference. The hydrostatic pressure at the venous end of the capillary is higher under conditions that lead to venous hypertension (e.g., venous obstruction, congestive heart failure).