The resistant system protects our body from the stainion of virus, bacteria, fungi and well-nigh other parasites. The booths of immune system have the ability to paries the bacteria, kill parasites, tumor cells or viral/bacterial infect cells (Linnemeyer, 1993). The immune system of a tender being is peerless effective. Antigen is a substance which obtains immune response in man body. The parts of an immune system atomic number 18:?Antigen specific (which depict a particular antigen and act against it)? imperious (Works throughout the body)? retentivity (identifies and accumulates a stronger attack to the antigen next time)Every cell in the immune system displays a marker that is ground on the study Histocompatibility Complex (MHC). The display helps in self or non-self recognition. The non-self cells be treated as enemies and attacked effectively. Sometimes, self cells argon attacked by the immune system itself due to the process tick down, which is called autoimm une disease. systemic lupus erythematosus, multiple sclerosis and some types of arthritis and diabetes be some examples of autoimmune diseases (Immune System, 2001). 52-62% of human root is composed by plasma silver-tongued and 38-48% of blood by cells. 7% cargo of the body of an total person is constituted by 5 liters of blood. The pH of blood is 7.40, which mean blood is alkaline in nature. Density of the blood is 1.
057, which shows it is heavier than water. The immune cells argon found in bone nerve center mainly. All these properties of blood cast off it able as a carrier of immune system. humoral Immunity Humoral immunity depends on the B-cells of i! mmune system. B-cells are lymphocytes which are answerable for the production of antibodies that works against an antigen. stalking cells of the bone marrow are the population from where B-cells arise. The location of lymphoid is identified in birds that are in the... If you want to aspire a full essay, drift it on our website:
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