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Unformatted text preview: 10 Specific Defenses • Cell-mediated (T) • Humoral (B) 11 Specific Immunity • Ag-Ab • MHC • APC 12 Antigen Presenting Cell 13 14 Classes of Immunoglobulins 80% Secretions First responder Allergy B-cell activation Self-tolerance… 15 APCs: Macrophages, B-cells, dendritic cells MHC: Major Histocompatibility Complex 16 T-cell Activation: APC + Helper T + Interleukin 1 --> IL2 release --> Helper T, Cytotoxic T and B-cell activation --> More cells, Cellular response (cytotoxic), Humoral response (plasma cells and antibodies) MHC 17 Immunity 18 Secretion of Antibodies Immunity 19 Types of Immunity 20 Summary • Lymphatic system: fluid, circulation, structures • Non-specific Immune Responses: – 1st and 2nd Lines of Defense • Specific Immune Response: – 3rd Line: Cellular and Humoral Responses • Antigen-antibody complexes – Immunity • Disease: Stages of a viral infection...
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- Summer '07
- ROBERETS
- Major histocompatibility complex, B-cell activation, non-specific immune responses
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