The Immune System

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Across
  1. 7. Enter and attack body cells that have been invaded by a pathogen
  2. 10. These cells create antibodies
  3. 12. white blood cells that eat pathogens
  4. 13. In the stomach, kills pathogens that you may have accidentally eaten
  5. 14. Part of the first line of defence, found on the outside of your body
  6. 15. This happens when the body remembers how to attack a certain antigen or pathogen
  7. 16. ____ immune response, also known as the second line of defence
  8. 18. These little molecules bind to specific antigens
  9. 19. An epidemic that has spread to many countries or continents
Down
  1. 1. Sneezing or coughing, for example
  2. 2. Swelling and redness at the site of an infection
  3. 3. An epidemic in a very small geographic area
  4. 4. Part of the second line of defence, when your body temperature heats up
  5. 5. tiny hairs that line your respiratory system
  6. 6. When you hug or shake hands with an infected person
  7. 8. this is a pathogen that you can catch if your bitten by an animal
  8. 9. These cells tell the B Cells to start working
  9. 11. anything that causes disease
  10. 17. ____ immune response, also known as the third line of defence