Body defense mechanisms Essay Example | Topics and Well Written Essays - 500 words

Body defense mechanisms - taste Example intrinsic resistant system does not have any specialized cells but uses some other cells to identify threats ilk bacteria, react to infections, and provide means of clearing the infections from the body. The system however switches on other immune systems in an antigen presentation method. This function is carried out by special white blood cells. Innate body mechanism forms a physical and chemical barrier that protects the body (Janeway, Travers, Walport, & Shlomchik, 2001).In contrast, adaptive immune system is found in vertebrates only and comprises of highly specialized cells. Also known as the acquired immune system, the system prevents growth of pathogens through the use of systemic cells. Adaptive immune system acts as a memory system, reacting to a similar infection when incited. Adaptive system is acquired through various ways like immunization. As opposed to innate system whose reaction is in the germline, adaptive system is deve loped end-to-end life through reactions to specific infections that create pathogen-specific receptors. The system acquires it name adaptive immune system, through its cleverness to enable the body to react to future similar infections. Adaptive immune system is enabled by heritable mutation which occurs in all cells of the body giving it more awareness and reactionary strength to advertize infections (Janeway, Travers, Walport, & Shlomchik, 2001).Primary innate body defense mechanism include inflammation, mucous head, physical and chemical barriers. sack involves cutting blood supply to the infected area, walling off the pathogens, and forming fibrous tissue of the area among others. Mucous clearance provides coverage of the epithelial layer of the trachea. Physical barriers like the skins functions like barriers when they are not infected. When the skin is intact, it provides angiotensin converting enzyme of the best barriers to infections. Nose hairs filter out particles o r any other substances that the body