Host Defenses II - Adaptive Defenses and Immunization

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Across
  1. 5. Response that defends against infection by directly killing or by modulating the immune response against infection in cells
  2. 6. T cells recognize antigens presented via MHC II or MHC I and express CD4 or CD8; modulate the immune response
  3. 7. 20-40% of all leukocytes, it is the smallest type of white blood cell and has a large nucleus and contains little cytoplasm
  4. 10. Immunity that recognizes traits shared by broad ranges of pathogens, using a small set of receptors
  5. 12. Occurs when a B or T cell binds to a specific antigen via its antigen receptor
  6. 13. Actively secrete antibodies
  7. 14. T cells that recognize antigens presented via MHC II and also express CD4; detect pathogens and activate other immune cells to fight them
Down
  1. 1. Response where antibodies defend against infection in body fluids
  2. 2. Type of lymphocyte that matures in the thymus
  3. 3. Immunity that recognizes traits specific to particular pathogens, using a vast array of receptors
  4. 4. "Record" information to fight a pathogen if it comes back
  5. 5. T cells recognize antigens presented via MHC I and express CD8; directly destroy cells they recognize
  6. 8. A substance that can elicit a response from a B or T cell
  7. 9. Type of lymphocyte that matures in the bone marrow
  8. 11. B cells are considered _ before they bind to an antigen