Respiratory system

4. muscular tube in the middle of the neck that helps with breathing and eating
8. Thin sacs that surround each lung lobe and separate your lungs from the chest wal
9. Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
11. a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs
12. a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs
13. a group of diseases that cause airflow blockage and breathing-related problems
15. the windpipe
16. air-filled spaces in the skull

1. Tiny hairs that move in a wave-like motion to filter dust and other irritants out of your airways
2. muscle that helps your lungs pull in and push our air
3. we need it to breathe
5. a condition in which your airways narrow and swell and may produce extra mucus
6. tubes at the bottom of the windpipe that connect to each lung
7. Blood vessels in the alveoli walls that move oxygen and carbon dioxide
8. respiratory doctor
10. organ that supplies the body with oxygen
14. the voice box
17. flap that covers the windpipe while eating