Across
- 3. helps clear bodily toxins
- 7. main function is to defend against any threats to our health
- 8. send t cells to kill off infected body cells
- 9. what blood cells are made of
- 10. destroy invading cells
Down
- 1. a type of white blood cell
- 2. trick immune system to attack healthy cells
- 4. trigger immune response and identify antigens
- 5. when a threat revisits cells can quickly release antibodies
- 6. fever and swelling