USMLE

Adaptive Immunity

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Immunology
  1. Innate Immunity
  2. Adaptive Immunity
  3. Macrophages
  4. Neutrophils
  5. Dendritic Cells
  6. Mast Cells
  7. Eosinophils
  8. Basophils
  9. Natural Killer Cells
  10. Antigens
  11. MHC I and II
  12. Antibodies
  13. B Lymphocytes Overview
  14. B Cell Stages
  15. B-Cell Activation
  16. Plasma B-Cells
  17. Memory B-Cells
  18. T-Lymphocytes Overview
  19. T-Cell Stages
  20. Types of Activated T-Cells
  • Adaptive Immunity
    • Immune system is made up of two interconnected branches: innate and adaptive immunity
    • Slow and specific response to particular pathogens 
    • Forms immunological memory after infection
    • Mediated by lymphocytes, a type of leukocyte (white blood cell)
    • Two sub-categories:
      • Humoral response (antibodies)
      • Cell-mediated response (direct attack)
        • T-Lymphocytes recognize and directly kill pathogens or coordinate other cells to act against them