Across
- 2. Tubes formed by the division of the trachea
- 4. The substance that you breathe out
- 6. A sticky substance which traps particles
- 9. When you breathe out
- 10. They protect your lungs and other organs such as the heart
- 11. A cluster of sacs at the end of the bronchioles where gas exchange takes place
- 15. This pumps blood through the whole body
- 16. The cavity at the back of the nose, connecting the mouth and nose to the oesophagus.
- 18. These muscles help lungs
- 22. When you breathe in
- 23. A sheet of muscle that seperates the chest from the abdomen
- 24. The average amount of oxygen a male can store
Down
- 1. The tube that carries air from the nose and mouth into the chest cavity
- 2. Small tubes formed by the division of the trachea
- 3. The substance that you breathe in
- 5. The system of organs and tissues that takes the air into the body
- 7. The amount of oxygen your lungs can store
- 8. Oxygen travels in this
- 12. Your voice box
- 13. The average amount of oxygen that a female can store
- 14. Soft bone which is found in the trachea
- 17. The organ which stores oxygen
- 19. The series of chemical reactions that takes place in cells to release energy
- 20. The part that connects the mouth to the stomach
- 21. Tiny hairs lining the nose