Across
- 2. This builds up in alveoli with emphysema
- 6. Gas that is breathed out from lungs
- 8. Process where glucose and oxygen make energy
- 10. This is high to let lots of oxygen from lungs
Down
- 1. Air sacs where oxygen's passed to blood
- 3. An adaptation of alveoli to let gases pass through
- 4. Two tubes that enter the left and right lungs
- 5. Smaller tubes that lead to the alveoli
- 7. Gas that is absorbed into the blood from lungs
- 9. Connects nose to the lungs