The Respiratory System
Across
- 2. oxygen moves from the lungs to the bloodstream
- 5. the cardiovascular system moves O2 from the lungs to the rest of the body
- 7. Network of tubes that conduct air through the lungs
- 9. enters the respiratory system through the nose and mouth and passes down the throat
- 10. O2 in the blood diffuses from the blood into the body cells
- 11. muscle 1 Type of Respiratory Muscles
- 14. become slightly negative relative to atmospheric pressure
- 15. As air enters, it is warmed, moistened, and filtered
- 19. Also known as the windpipe
- 20. basketlike skeletal structure that forms the chest
Down
- 1. Between the ribs
- 3. Allows for gas exchange by process called diffusion
- 4. mechanisms to avoid problems or tissue damage
- 6. expands as a result of the contraction of the diaphragm
- 8. In the neck
- 12. Primary organs of breathing and gas exchange
- 13. pulling the ribcage upwards and outwards
- 16. air between the lungs and the atmosphere during expiration
- 17. thin skeletal muscle that sits at the base of the chest and separates the abdomen from the chest
- 18. Common passage for respiratory and digestive systems