Across
- 4. pleural layer covering the thorax walls
- 8. vibrate with exhaled air
- 9. fleshy lobes in the nasal cavity which increase its surface area
- 11. air enters the nasal cavity of the respiratory system through the
- 12. pleural layer covering the lungs
- 14. closes off the larynx during swallowing
- 15. clusters of lymphatic tissue
- 16. major nerve, stimulating the diaphragm
- 17. separates the oral and nasal cavities
Down
- 1. the passageway often referred to as the throat
- 2. this type of cartilage forms the epiglottis
- 3. smallest conducting respiratory passageways
- 5. opening between vocal folds
- 6. common name for the anterior protrusion of the thyroid cartilage
- 7. windpipe
- 10. actual site of gas exchanges
- 13. food passageway posterior to the trachea