Chapter 4 - 4.3-4.5

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Across
  1. 2. white blood cells that act as a messenger, makes antibodies, and destroys pathogens are _____.
  2. 3. The _____ is the largest lymphatic organ.
  3. 5. Tissue fluid becomes _____ when it enters lymph capillaries.
  4. 8. Large bunches of lymphatic tissue located throughout the body are _____ _____.
  5. 10. A way to stop pathogens from spreading is to use hand _____.
  6. 12. Y-shaped proteins which help the body develop immunity are _____.
  7. 14. Pathogens can be spread by _____ and _____ contact.
  8. 15. A way to stop pathogens from spreading is to _____ hands.
  9. 16. A substance that causes the body to become immune to a particular disease is a _____.
Down
  1. 1. White blood cells that surrounds and destroys pathogens are _____.
  2. 2. The _____ system is the part of the immune system that collects tissue fluid from the body and cleans the body of pathogens.
  3. 4. Tonsils and adenoids trap _____ before you inhale or swallow them.
  4. 6. A way to stop pathogens from spreading is to stay _____.
  5. 7. A way to stop pathogens from spreading is to use _____.
  6. 9. Fluid that surrounds cells is _____ fluid.
  7. 11. _____ blood cells travel from the bloodstream to the places in the body that need defense.
  8. 13. Vitamin _____ and the mineral _____ help the body fight disease and infection.