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