Across
- 3. a small tube with tight cords that produce sound
- 5. the substance that moves from the alveoli to the blood during cellular respiration
- 7. a pair of cartilage covered tubes that allow O2 and CO2 to enter and exit the lungs
- 8. how many school weeks we get off for winter break!
- 10. a passage that leads from the mouth and nose to the esophagus and the larynx
- 12. cells in the trachea have this to sweep up mucus in the pharynx so we can cough it out
- 13. a cartilage covered tube that allows O2 and CO2 to enter and exit the respiratory system
- 15. large organ where gas exchange happens in the body
Down
- 1. what score you earn on your test if you cheat (talk, copy, etc.)
- 2. small pods where O2 and CO2 comes in and out of the blood
- 4. two words that are the entry and exit of the respiratory system
- 6. small tubes that gas uses to travel to and from the alveoli
- 9. two words that are the waste product of respiration
- 11. large muscle that moves up and down to allow lungs to have room for breathing
- 14. the reason our trachea feels bumpy- it is covered with this to keep its structure and keep it safe