Across
- 5. An organism that contains many different types of cells
- 8. People breathe this in
- 9. Tiny sacs at the end of bronchioles, filled with air
- 10. A tiny particle that can cause different types of diseases
- 11. A major cause for lung disease
- 13. Also known as our chest
- 14. Make a lung considered an organ, there are different types of these.
- 15. A virus that affected the entire world population in 2020
- 18. When organs work together in unison
- 19. When oxygen enters the blood and removes carbon dioxide
- 20. Muscle that helps people exhale and inhale
Down
- 1. Are bones that protect and surround someone's lungs
- 2. Tubes that go into each lung
- 3. Hairs inside the nose that filter/clean the air coming into the cavity
- 4. Each different tissue is made up of these
- 6. Helps people be heard with their voice
- 7. Another name for the breathing system
- 12. People breathe this out
- 16. Is an airway commonly known as the windpipe.
- 17. Are the organs in the breathing system