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Defence system (SPECIFIC DEFENCE (Lymphocytes (T cells (Helper T cells…

- - - - Helper T cells trigger plasma B cells and Killer T cells
      - Killer T cells make perforin to burst pathogens or infected body cells
      - Suppressor T cells shut down the immune system after the infection has cleared
      - Memory T cells remain to trigger B cells and Killer T cells
    - - Plasma B cells make antibodies
      - Memory B cells remain to rapidly reproduce antibodies if infected a second time - life long immunity