Across
- 3. holds the lungs in place
- 6. several groups of muscles to form the lungs wall
- 8. the main air way to the lungs
- 9. connects the trachea to the lungs
- 10. connects mouth and nose to esophagus
Down
- 1. there are two of them
- 2. the name outer membrane
- 4. where air first goes through
- 5. delicate membrane that covers the lungs surface
- 7. protects the lungs