Across
- 2. main branches leading from the trachea to the lungs
- 4. where blood and air meet
- 7. leaf structure that opens and closes over the glottis during swallowing
- 8. separates the mouths from the nasal cavity
- 10. the windpipe
- 11. the lining encasing the lungs
- 12. pockets in the facial bones
- 13. clusters of air sacs at the end of the bronchial tree
- 16. interval between the two vocal cords
- 17. breathing air into the lungs
Down
- 1. smallest divisions of the bronchial tree
- 2. branching of the bronchus after entering the respective lung
- 3. division of lungs
- 5. a ridge at the lower of the the trachea, separating the openings of the two bronchi
- 6. chief muscle of respiration
- 9. exhaling out of the lungs
- 11. a passage way for food and liquid into the digestive system
- 14. voice box
- 15. notch in the lung where bronchi and vessels enter