Across
- 6. destroys bacteria
- 8. destroys virus
- 10. carries 02
- 13. clothing of the pathogen
- 15. outer layer
- 16. towards the heart
- 17. skin, hair, nails
- 18. cools body
- 19. away from the heart
Down
- 1. cause scabs
- 2. fight infection
- 3. spot pathogen
- 4. destroy pathogen
- 5. disease causing agent
- 7. weak or dead strand
- 9. moisten skin and hair
- 11. inner layer
- 12. connects exchanges
- 14. redness swelling and heat