Immune system

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Across
  1. 4. invades helper T cells.
  2. 5. defense.
  3. 6. is a series of events that suppress infection and speed recovery.
  4. 8. and kill pathogens they encounter.
  5. 9. serve as a barrier to pathogens.
  6. 11. invaders for later destruction by macrophages.
  7. 12. local blood vessels to dilate, increasing blood flow to the area.
  8. 13. activate antibody production against that pathogen.
Down
  1. 1. the body’s inappropriate response to a normally harmless antigen.
  2. 2. to a particular disease
  3. 3. of cells and tissues found throughout the body.
  4. 7. a disease causing agent.
  5. 10. a white blood cell that engulfs and destroys pathogens.