Across
- 4. Tons of small tubes in your lungs
- 5. The best organ system
- 6. Provides oxygen for a cell
- 7. A tube that goes down to your lungs
- 8. Brings air to trachea from your nose
Down
- 1. Helps us speak
- 2. Holes in your nose that bring in oxygen
- 3. From the Bronchioles to the ___________
- 4. Tubes that go off the trachea