Immunity

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Across
  1. 4. Another name for white blood cells
  2. 6. Foreign substances that trigger the immune response
  3. 9. Also known as hives
  4. 10. Increased number of white blood cell production
  5. 11. These disorders are caused when the body can't recognize self
  6. 12. Together these proteins make up the humoral immune response
  7. 13. Also known as seasonal allergies or hay fever (2 words)
  8. 17. Decreased number of white blood cells
  9. 18. Occurs when the immune system is unable to respond effectively
  10. 19. This type of immunity occurs when individuals receive antibodies from another person
  11. 21. Type 4 hypersensitivity
  12. 22. The body's natural or induced response to infection
Down
  1. 1. Overreaction of the immune system
  2. 2. This type of hypersensitivity is called Immune complex-mediated
  3. 3. Type 2 hypersensitivity
  4. 5. These kind of infections usually don't affect people with intact immune systems
  5. 7. Acute systemic type 1 response
  6. 8. Largest lymphoid organ
  7. 13. This type of immunity results from a previous exposure to an antigen
  8. 14. Immune systems that effectively identify and destroy antigens
  9. 15. This type of immunity can occur through exposure to disease of through vaccination
  10. 16. This type of hypersensitivity is called IgE-mediated
  11. 20. Produces and stores hematopoietic stem cells (2 words)