antibodies

      • IgA= secreted into mucous, saliva, tears, colostrum. Tags pathogens for destruction
      • IgD= b- cell receptor. Stimulates release of IgM
      • IgE= binds to mast cells and basophils. Use in allergic and antiparasitic activity
      • IgG= binds to phagocytes. Main blood antibody for secondary responses. Cross placenta
      • IgM= Fixes complement. Main