Across
- 3. skin, hair, nails
- 7. carries o2
- 9. towards the heart
- 11. spot pathogen
- 13. inner layer
- 16. moisten skin and hair
- 18. destroy pathogen
- 19. away from the heart
Down
- 1. Disease causing agent
- 2. clothing of the pathogen
- 4. outer layer
- 5. weak or dead
- 6. Fight infection
- 8. destroys bacteria
- 10. redness,swelling,and heat
- 12. connects, exchanges
- 14. cools body
- 15. destroys virus
- 17. cause scabs