Across
- 2. swaps carbon dioxide for oxygen in the blood stream
- 4. behind nose and mouth
- 6. smaller bronchi
- 8. muscle responsible for letting you inhale and exhale
- 9. second largest muscle in your body
Down
- 1. connects pharynx and larynx
- 3. nose and eye area that cleans the air breathed in
- 5. small tubes bringing air to lungs
- 7. in the neck contains vocal cords