Immune System Crossword

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Across
  1. 4. The molecules that the immune system recongnizes as either part of the body or coming from outside the body.
  2. 6. immunity gained through the transfer of antibodies from one person to another
  3. 8. the proteins produced by B Cells.
  4. 11. A cell that identifies pathogens and destroys them
  5. 12. immunity gained through generating your own antibodies
Down
  1. 1. contains harmless antigens are purposefully introduced to a person's body to produce active immunity.
  2. 2. The body's first line of defense against pathogens.
  3. 3. Lymphocytes that produce proteins that help destroy pathogens.
  4. 5. immune response that uses skin, membranes, and phagocytosis as a defense against pathogens
  5. 7. A chemical that kills bacteria or slows their growth without harming cells.
  6. 9. immune response that uses B and T lymphocytes
  7. 10. A cell that identifies pathogens and coordinates a response in the body