The Respiratory System
Across
- 3. the medical name of your voice box
- 5. where gas exchange of oxygen and carbon dioxide occurs
- 8. dioxide we breath it out
- 9. to not use oxygen when we exercise
- 10. the hairs in your nose
- 11. we breath it in
Down
- 1. to use oxygen when we exercise
- 2. the main organ of the respiratory system
- 4. the muscle that pushes air out of your lungs
- 6. it stops you from choking
- 7. when we breath in
- 12. when we breath out