The Respiratory System
Across
- 2. (Inflates and deflates the lungs)
- 4. (What we exhale)
- 7. (Tube that connects bronchus to alveoli)
- 8. (A pipe from Nose to Bronchus)
- 10. (The entrance of oxygen)
- 11. (Are blood vessels in alveoli walls)
Down
- 1. (movement of oxygen and blood)
- 3. (Two big air bags)
- 5. (What we inhale)
- 6. (Air sacs that exchange oxygen)
- 7. (A pipe that splits air)
- 9. (A protective shield for some organs)