Page 124 - Das Wunder im Blut und Herz
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STIMULUS:         If a
                                 primary
                                 contact:


                    ANTIGEN
                 (foreign molecular
                 structure detected in
                    the tissue)
                  If a secondary
                  contact:


                                             MACROPHAGES         B-CELLS
                                        pass on their information concerning  bind and process antigen to
                                             the invaders to:     become:
                                                         activate,
                                               HELPER    stimulate  SENSITIZED
                                               T-CELLS    rapid   B-CELLS
                                                        divisions of:
                                 activate   activate,
                                 directly:  stimulate
                                        rapid
                                      divisions of:   differentiate into:  some reserved as:
                       MEMORY        KILLER             PLASMA        MEMORY
                       T-CELLS       T-CELLS             CELLS        B-CELLS
                                                        secrete:
                   rapid secondary divisions
                                                       ANTIBODIES
                      MAIN TARGET:                    MAIN TARGET:
                      Intracellular (viruses, some fungi and proto-  Extracellular (bacteria, viruses' extracellular
                      zoans), cancer cells, graft cells  phases, some fungi and protozoans)
                      OUTCOME:                        OUTCOME:
                      The killer T-cells attack sick, mutated or foreign  The antibody binds to the antigen, setting up
                      cells; macrophages are recruited (phagocyto-  invaders for destruction by macrophages or for
                      sis).                           lysis through complement.
                      CELL-MEDIATED IMMUNE RESPONSE  ANTIBODY-MEDIATED IMMUNE RESPONSE

                       ANTIKÖRPERVERMITTELTE IMMUNANTWORT
                  Das menschliche Immunsystem ist außergewöhnlich komplex.
                    Gerade dieses Diagramm lässt viele Details aus, und viele
                     Vorgänge werden nicht gezeigt. Die Funktionsweise des
                  Systems ist – auch in allgemeinen Begriffen – überaus detail-
                                     liert und durchdacht.



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