Innate and Adaptive Immunity

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Across
  1. 1. A white blood cell that engulfs and destroys microorganisms and stimulates other immune system cells.
  2. 4. Secretes cytokines that have dramatic effects on other immune system cells.
  3. 6. A vesicle containing powerful chemicals and enzymes to destroy bacteria.
  4. 8. Chemicals that recruit other immune system players to the battle site.
  5. 10. Designed to recognize danger signals associated with a microbial attack.
  6. 12. The tiny region of a cognate antigen that a BCR binds to.
  7. 13. A cell that exists the bone marrow and enters the bloodstream to mature into a macrophage.
  8. 15. Antibody factories.
  9. 17. An immune cell capable of killing certain cells including cancer cells, cells infected with a virus.
  10. 18. Fragments of viral proteins.
Down
  1. 2. Type of cell that keeps the immune system from overreacting or from reacting inappropriately.
  2. 3. Made up of the heavy chain and light chain proteins.
  3. 5. Known collectively as B and T cells.
  4. 7. "Hyperactivation" signal from an invader is conveyed by this molecule.
  5. 9. Professional killers which are on call from the blood, immune system's "foot soldiers."
  6. 11. Leftover B and T cells which are easier to activate.
  7. 14. An antigen that can cause an allergic reaction.
  8. 16. Can kill infected cells and bacteria by forcing them to commit suicide.