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1 Antigens combine with antibodies to form antigen- antibody complexes Antigen Antibody Antigen-antibody complex.

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Presentation on theme: "1 Antigens combine with antibodies to form antigen- antibody complexes Antigen Antibody Antigen-antibody complex."— Presentation transcript:

1 1 Antigens combine with antibodies to form antigen- antibody complexes Antigen Antibody Antigen-antibody complex

2 Phagocytes remove most of the complexes, but some lodge in the walls of blood vessels 1 2 Antigens combine with antibodies to form antigen- antibody complexes Antigen Antibody Antigen-antibody complex

3 Phagocytes remove most of the complexes, but some lodge in the walls of blood vessels There the complexes activate complement Antigens combine with antibodies to form antigen- antibody complexes Antigen Inactive complement Antibody Antigen-antibody complex Active complement

4 Phagocytes remove most of the complexes, but some lodge in the walls of blood vessels There the complexes activate complement Antigen-antibody complexes and activated complement attract and activate neutrophils which release inflammatory chemicals Antigens combine with antibodies to form antigen- antibody complexes Antigen Inactive complement Neutrophil Antibody Antigen-antibody complex Active complement Inflammatory chemicals

5 Phagocytes remove most of the complexes, but some lodge in the walls of blood vessels There the complexes activate complement Antigen-antibody complexes and activated complement attract and activate neutrophils which release inflammatory chemicals Antigens combine with antibodies to form antigen- antibody complexes Antigen Inactive complement 5 Inflammatory chemicals damage underlying blood vessel wall Neutrophil Antibody Antigen-antibody complex Active complement Inflammatory chemicals


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