Across
- 2. Membrane around the lungs
- 5. Tree branches of the lungs
- 9. Another word for throat
- 10. A condition that makes breathing stop
- 11. Air sacs in the lungs
- 12. Overbreathing
Down
- 1. The act of breathing
- 3. Left lung has two, right lung has three
- 4. The hiccup muscle
- 6. Gas that gets expelled
- 7. Voice box
- 8. Breathing in