The two major classes of lymphocytes are: * B cells (which are derived from bone marrow and develop into germ plasm cells that are the source of antibodies) * T cells (which are processed in the thymus and secrete lymphokines)Antibodies discharge attach to a specialised site on an antigen in order to block it or render it harmless. Any capacity capable of triggering an immune rejoinder is called an antigen.NIAID reports, at the heart of the immune system is the ability to signal between self -importance and non-self. immune cells and ! other cells in the body usually coexist pacifically in a asseverate known as self-tolerance. In abnormal situations (such as an autoimmune disease), the immune system can wrongly identify self as non-self and execute a misdirected immune attack.According to Medscape, the altered ontogenesis and function of B cells may play a enceinte role in umteen rheumatic disorders. The concept of B-cell depletion therapy is being...If you emergency to get a full(a) essay, order it on our website: BestEssayCheap.com
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