Ch. 13: Respiratory System
Across
- 3. Bronchial tree
- 7. Empty space between lungs
- 8. Nostrils
- 9. Sense of smell
- 15. Guardian of the airways
- 17. Throat
- 18. Slit between the vocal cords
- 19. Windpipe
Down
- 1. Surround nasal cavity
- 2. Folds of mucous membrane
- 3. Rests on diaphragm
- 4. Lymphatic tissue
- 5. Division of the trachea
- 6. Roof of the mouth
- 10. The voice box
- 11. Air sacs where gas exchange occurs
- 12. The Adam's apple
- 13. Lines thoracic wall
- 14. Base of tongue
- 16. Fill most of the thoracic cavity