Across
- 2. A source of energy used for the process of breathing
- 4. The action of breathing
- 7. The branches of the lungs that reaches the alveoli
- 9. Respiration that doesn't involve oxygen
- 13. The part of the lungs that gas exchange occurs in
- 15. 2H + O
- 17. The process of switching oxygen and carbon dioxide in the blood
- 18. The area of the body where the respiratory system is at
- 19. The gas that is exchanged with carbon dioxide in the process in gas exchange
- 20. The dividers of the trachea
- 21. This is created during an anaerobic activity
- 22. There is more of this when you breathe out
- 24. Solid, Liquid and ___
- 26. A waste product in yeast/plants
- 27. The part of the cell where respiration occurs in
- 28. A greenish yellow substance found in the trachea
Down
- 1. The movement of air in and out of the lungs
- 3. Tiny Hair-like structures
- 5. This expands To increase the volume of the lungs
- 6. The process of bring air in and out of the body
- 8. Makes a red liquid that is essential to live
- 9. Respiration that involves oxygen
- 10. The part that protects the lungs
- 11. The part that makes the trachea flexible and prevents it from collapsing
- 12. Another name for a windpipe
- 14. A lung disease caused by smoking
- 16. This contracts to increase the volume of the lungs
- 21. The two organs in the body that holds the respiratory system
- 23. A disease that blocks normal air flow
- 25. This carries the oxygen around the body and into the muscles so they may function