Across
- 2. Switching point for air and food
- 3. The thinnest most delicate part of the respiratory system
- 4. Bone ridges that create an uneven surface in the nasal passage
- 6. Blood pressure is _____ in the pulmonary circuit than in the systemic circuit
- 7. All living things require ___ to survive
- 10. Produced by Type II cells
- 12. Another name for the windpipe
- 13. ______ cavity - where the lungs, heart and other organs are tightly packed
- 16. Organelles that produce energy
- 17. Tube for food which sits behind the trachea
- 19. Limits the distortion of the trachea
- 20. type of lobe found only in right lung
Down
- 1. Blood-gas exchange occurs through this
- 5. Functional classification portion that does not participate in gaseous exchange
- 8. One of the ways air can be taken into the respiratory tract
- 9. Contains vocal cords for creating sound, pitch and volume
- 11. Cell type which patrols the alveoli and engulfs foreign particles
- 14. 95% of ATP is produced by ________ metabolism
- 15. The smallest passageways which the main airways (bronchi) branch off into
- 18. Part of the throat where the mouth and nasal cavity meet