Antigens :Antigens:
• Can be any large molecules that that can trigger an immune response. Before birth, the body makes an inventory of “self” antigens
• Immune response is directed against “nonself” molecules,which are usually large and complex foreign molecules
Antibodies: there are 5 major types of antibodies (immunoglobulins) constitute the gamma globulin
fraction of the plasma (IgG, IgA, IgM, IgE, IgD)
and they use 3 methods. They directly attack, they use the activation of complement, and inflammation.