Immune

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Across
  1. 1. cells that release histamine
  2. 6. stores blood cells
  3. 9. where blood cells are made
  4. 11. causes disease in the body
  5. 12. blood cells that fight pathogens
Down
  1. 2. structure in throat to prevent pathogens from entering the body
  2. 3. T-cells attack ___ cells and destroy them
  3. 4. B-cells make ___
  4. 5. the immune system's functions are to ___ and destroy
  5. 7. nodes that filter pathogens from lymph
  6. 8. a type of WBC that "eats" harmful pathogens
  7. 10. gives a weakened version of a disease to help the body remember it