human immune system

слайд 1 human immune system cells cooperation in immune response primary or central lymphoid organs are responsible for synthesis and maturation of immunocompetant cells. these include the bone marrow and the thymus. peripheral or secondary lymphoid organs are sites where the lymphocytes localise, recognise foreign antigen and mount response against it. these include the lymph nodes, spleen, tonsils, adenoids, appendix, and clumps of lymphoid tissue in the small intestine known as peyer's patches. they trap and concentrate foreign substances, and they are the main sites of production of antibodies. white blood cells phagocytes - neutrophils macrophages lymphocytes cells of the immune system white blood cells 6 lymphocyte (could be b cell or t cell!) 7 lymphocytes present in lymphoid organs...

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