Chapter 13: Host Defenses II

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Across
  1. 3. Process where specific lymphocytes are activated and multiply
  2. 4. Rapid increase of selected lymphocytes
  3. 6. Abbreviation for major histocompatibility complex
  4. 7. Faster, stronger response upon re-exposure
  5. 8. T cell that kills infected or abnormal cells
  6. 10. Immunity gained from transfer of antibodies
  7. 11. Most abundant antibody in blood
  8. 13. T cell that activates other immune cells
  9. 15. Antibody found on B cell surface
  10. 16. Differentiated B cell that secretes antibodies
  11. 18. First immune response to an antigen
  12. 20. Immunity mediated by antibodies in body fluids
  13. 22. Exposure to antigen to produce immunity
  14. 25. Cell that displays antigen fragments to T cells
Down
  1. 1. Immunity acquired through medical intervention
  2. 2. Cell surface proteins presenting antigens
  3. 5. Immunity acquired through natural exposure
  4. 9. Antibody involved in allergic reactions
  5. 12. Immunity developed from infection or vaccination
  6. 14. First antibody produced during primary response
  7. 17. Immunity involving T cells attacking infected cells
  8. 19. T cell that suppresses immune responses
  9. 21. Antibody found in secretions like saliva and mucus
  10. 23. Long-lived cell that provides faster future responses
  11. 24. Potent antigen-presenting immune cell