The need for self-recognition -- Antigens and receptors -- Barriers to infection -- Cells of the innate immune system -- Innate immune function -- Molecules of adaptive immunity -- Cells and organs -- Generation of immune diversity : lymphocyte antigen receptors -- Lymphocyte development -- Lymphocyte activation -- Lymphocyte effector functions -- Regulation of adaptive responses -- The well patient : how innate and adaptive immune responses -- Maintain health -- Hypersensitivity reactions -- Immune deficiency -- Autoimmunity -- Transplantation -- Immune pharmacotherapy -- Tumor immunity -- Measurement of immune function