Across
- 2. Has 3 different regions; connected to nose.
- 5. Help warm the air in your nose.
- 7. Branches off from trachea into your lungs.
- 8. Transport oxygen to blood.
- 10. Smaller air pipes in your lungs.
Down
- 1. Connected to nasal cavity and larynx.
- 2. Where you air travels in your body most of the time.
- 3. Muscle that controls breathing.
- 4. Main organ of respiratory system.
- 6. Allows air to travel in and from your lungs.
- 9. Voice box.