Immunology test @

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Across
  1. 2. Cells that die as a result of a wound or viral/bacterial attack die by_______.
  2. 3. Clustering of TCRs and adhesion molecules at the point of contact between APC and a T cell is called an immunological_______.
  3. 4. Small protein fragments.
  4. 6. The second signal involved in activating a B cell is a _______signal.
  5. 7. Another term for a complement receptor.
  6. 12. The second way a CTL can kill uses_______.
  7. 13. Type of feedbabck loop resulting in even more selected Th cells being produced.
  8. 15. Group of cytokines expressed by a helper T cell.
  9. 17. When T cells and killer T cells have been activated they become:
  10. 18. Proteins that function as wood chippers.
  11. 19. Starfish shaped cells of the innate immune system.
Down
  1. 1. Cell that is an antibody factory.
  2. 4. Relative of the C9 complement protein that CTLs use to kill invaders.
  3. 5. The tiny region of the cognate antigen that a BCR binds to.
  4. 8. When BCR's are clustered together they are referred to as:
  5. 9. MHCI molecules are billboards for displaying______proteins.
  6. 10. cells Function as the coach of the immune system.
  7. 11. Function as the quarterback of the immune system.
  8. 14. MHCII molecules are billboards for displaying______proteins.
  9. 16. Programmed cell death.