Across
- 2. The muscle that contacts to make us breathe in.
- 4. Short version of writing Red Blood Cells.
- 7. The movement of gasses through he alveolar wall into the blood stream.
- 8. The C shaped supports surrounding the trachea.
- 11. What is the surface area of out lungs in square metres?
- 13. Breathing out.
- 14. The windpipe
- 17. The nasal cavity has mucus and hairs called villi to ______ the incoming air.
- 19. The left lung has how many lobes?
Down
- 1. vessels that surround the alveoli.
- 3. Membrane that covers the lungs.
- 5. small air tubes branching throughout the lungs.
- 6. The thing that initiates breathing (second video)
- 9. cavity Most of our respiratory organs are within this.
- 10. Breathing in.
- 12. One function of the nasal cavity.
- 15. The process of breathing, inhalation of oxygen and exhalation of CO2.
- 16. The two tubes that enter each lung from the trachea.
- 18. The right lung has how many lobes?