Front | cell mediated immunity 4.1.1(f) and (g) |
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Back | - T lymphocytes respond to cells of organisms that have been changed (like by mutation or virus), cell mediated responses particularly important against viruses and early cancers; - IN NS defence system, macrophages engulf/digest pathogens in phagocytosis, process antigens from pathogen to form APCs - receptors on some T helper cells fit antigen, these activated and produce interleukins (stimulate more T cells to divide) forming clones of activated T helper cells (with right antigen for pathogen) - clone T cells may develop into T memory cells, producing interleukins (that either stimulate phagocytosis or B cells division) or stimulate development of clone T killer cells |
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