Across
- 2. chest
- 4. veins
- 7. life
- 9. drug
- 11. heart
- 13. tumor
- 15. blood vessel
- 17. bone
- 19. stomach
- 21. disease
- 23. lymph
- 25. artery
Down
- 1. lungs
- 3. nature of
- 5. blood
- 6. skin
- 7. air passages
- 8. sugar
- 10. hearing
- 12. tumor
- 14. liver
- 16. nervous system
- 18. eye
- 20. cell
- 22. tissue
- 24. muscle