Across
- 3. branching airways
- 5. main airway and know as the windpipe
- 6. cover the lungs and line the chest cavity
- 10. filters, warms and moistens air
- 12. common passageway for air, food and liquid
- 13. Organ of gas Exchange
- 14. passageway for air
Down
- 1. covers larynx during swallowing
- 2. Air Sacs for gas exchange
- 4. moves ribs during respiration
- 7. Protects vital organs
- 8. Passageway for food and air
- 9. skeletal muscle of respiration
- 11. production of sound