Across
- 2. a wind pipe
- 4. primary breathing organ
- 5. conducts air throughout the body
- 9. dome shaped muscular partition separating the thorax from the abdomen
- 10. common passage way for the digestive system
- 12. Normal pathway for air to enter
Down
- 1. What we need to live
- 3. where blood exchange of o2 and co2 happens
- 6. brings air into the lungs
- 7. lets air flow out of the lungs
- 8. air passage for sound
- 11. involuntary contractions of your diaphragm