Across
- 3. structure
- 4. lower
- 6. ateries do carry blood
- 10. to kill
- 11. oxygen
- 13. abdonminal
- 15. small
- 17. stomach
- 19. enzyme
- 20. clear fluid
- 22. use, action
- 24. urination
- 25. few
Down
- 1. function
- 2. more of
- 5. up
- 7. large
- 8. blue
- 9. outside
- 12. the study of
- 14. less of
- 16. air
- 18. thyroid
- 21. algesia
- 23. trachea