ocr: Resident and Staff PhysicaM Patiant Education Chart Humoral Immunity 1. Bacteria enter lymph node 2. Macrophages engulf them Lymph Node 3. Macrophages identify them to T-lymphocytes 4. T cell signal B-lymphocytes with bacteria 5. Some B-lymphocytes become plasma cells and produce antibodies 6. Antibodies cause bacteria to - clump 7. Macrophages engulf the clumps Reprinted with permission from Resident and: Staff Physician (c)1991-92, 1993 byl Romaine Pierson/Publishers, Inc.
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