Across
- 1. hairs in the trachea that prevent dust from entering lungs
- 3. one of the first lines of defense
- 6. a nonliving pathogen
- 8. sticky protein secreted by platelets
- 10. increased blood flow to an injured area
- 13. platelets form these
- 14. one of the functions of the blood
- 15. liquid tissue
- 16. antibacterial enzyme found in tears
- 17. proteins that are made to attack antigens
- 18. scientific name for red blood cell
- 20. pathogens name tag
- 21. protein that dilates blood vessels
- 22. a chemical that attracts oxygen
- 23. a living pathogen
Down
- 2. another name for vaccinations
- 4. the 'fight' against pathogens
- 5. cancer of the blood
- 7. first line of defense in the tummy
- 9. temporary protection against a pathogen
- 11. misshapen blood cells
- 12. scientific name for white blood cell
- 19. iron containing pigment