respiratory system
Across
- 4. muscles used for breathing
- 5. the air goes from the path to the lungs
- 6. organ at back of mouth that allows passage of food and air
- 9. gas needed for respiration
- 10. air sacs
Down
- 1. large tube to each lungs
- 2. wind pipe
- 3. voice box
- 7. the lungs is protect by
- 8. tubes from trachea to lungs