Across
- 2. Muscle found at the bottom of the respiratory system
- 4. Microscopic sacks of air at end of bronchioles where gas exchange happens
- 6. 2 Main tubes going into each lung from the Trachea
- 7. Muscles around the ribs
Down
- 1. Main tube going from mouth into lungs
- 3. Smaller tubes in each lung
- 5. Main organs where are the others parts of respiratory system are located
- 8. Flat bones which protect the lungs