Across
- 3. caused by uncontrolled cell growth and DNA mutations
- 4. the type of gas that is essential to life
- 5. line up your airways and makes it easier to breath
- 7. makes you lungs and heart stronger
- 10. common condition that uses an inhaler
- 11. what we do to carbon dioxide
- 12. biggest organ in the respiratory system
- 13. transfer air to the lungs
- 14. used as passageways for air
Down
- 1. entry way for food and air
- 2. holds vocal cords
- 6. what we do to oxygen
- 8. lung disease caused by an infection
- 9. the process that makes energy and is supported by the respiratory system
- 10. allows oxygen in the bloodstream