immune system alsaraawey

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Across
  1. 3. largest lymphatic organ
  2. 5. resistance to a specific disease-producing antigens
  3. 7. a large white blood cell that engulfs pathogens and cellular debris
  4. 9. a substance that stimulates an immune response
  5. 10. filter lymph for bacteria and tumor cells
Down
  1. 1. solution containing a harmless version of a virus
  2. 2. substance produced by B cells in response to a specific antigen
  3. 4. fluid found in the lymphatic system
  4. 6. a large white blood cell that attacks pathogen-infected cellsand cancer cells
  5. 8. produces antibodies in response to antigens
  6. 11. a disease-causing organisms