Across
- 4. fast breathing
- 6. dilation of the bronchioles
- 7. direct gas exchange occurs
- 8. amount of air moved in each breath
- 10. 3 lobes
Down
- 1. slow breathing
- 2. constriction of the bronchioles
- 3. division at the base of the trachea
- 5. amount of air moved in each minute
- 9. 2 lobes