Across
- 2. / voicebox
- 4. / muscular disc under the lungs
- 6. / tiny air sacs where gas exchange happens
- 8. / caused by spasming diaphragm
- 9. / part of the brain that controls breathing
- 11. / system that has gas exchange as primary function
- 15. / flaplike structure that prevents liquid or food from entering trachea
Down
- 1. / windpipe
- 3. / diaphragm and intercostals relax
- 5. / throat
- 7. / spongy organs with lobes
- 10. / swelling of vocal cords (possibly from infection)
- 12. / caused by low oxygen; forces a deep breath
- 13. / diaphragm lowers and intercostals contract
- 14. / divides the nose