Across
- 4. tiny air sacs at the ends of the terminal bronchioles
- 5. the ease with which the lungs expand in the thorax
- 7. essential element which is carried through the cardiovascular system
- 8. the expulsion of air from the lungs
- 10. the process by which oxygen is obtained and delivered
- 12. the drawing of air into the lungs
- 14. excessive rate of breath
Down
- 1. sensors which detect arterial blood gas levels
- 2. the windpipe leading to both lungs
- 3. increased arterial CO2 levels
- 6. this nerve controls the diaphragm
- 9. the voice-box containing the vocal cords
- 11. the throat
- 13. lack of breathing