Is it true that substances are carried from the blood in capillaries to tissues in a liquid called tissue fluid? What is the extracellular fluid in most tissues is called? What is a tissue fluid?   Tissue fluid is the the fluid that surrounds the bodies cells, or technically it bathes the cells in the body or cleans them.
The most important function of immune system is to defend the body from different disease causing pathogens. Whenever there is pathology in human body, immune system is activated to protect the vital tissues from harm.
Immune System supplement, vitamin, herb, natural ways to improve - Diet, foods and nutrients. November 25 2015 by Ray Sahelian, M.D. The function of the human immune system is to defend the body against invaders. Microbes (germs or microorganisms), cancer cells, and transplanted tissues or organs are all interpreted by a healthy immune system as non-self against which the body must be defended.