Across
- 4. What divides off from bronchi/bronchus
- 5. What chemical do you want OUT of your body?
- 6. Tiny air sacs of the lungs which helps CO2 exchange
Down
- 1. Under the lungs
- 2. What conducts air to your lungs?
- 3. What protects your lungs?
- 7. Helps you breathe