Respiratory System

3. major muscle of respiration
5. move microbes and debris up and out of the airways
7. organ that allows respiration to take place
8. protects the organs
10. primary respiratory control center
13. Hollow organ that allows you to talk and make sounds when air moves in and out.
14. flap that prevents food from entering the windpipe
17. Small branches of the bronchial tubes that lead to the alveoli.
19. relating to the lungs
20. tube where the vocal cords are, voice box
22. prevent foreign objects from slipping into the lungs
23. inflammation of the lining of your bronchial tubes
25. contagious infection that usually attacks your lungs

1. the act of breathing
2. Blood vessels in the alveoli walls that move oxygen and carbon dioxide.
4. substance that protects the lungs
6. respiratory disease that causes difficult in breathing
9. air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
11. gas breathed in by the lungs
12. carry air out of your lungs
15. Thin sacs that surround each lung lobe and separate your lungs from the chest wall.
16. Tissue flap at the entrance to the trachea that closes when you swallow to keep food and liquids out of your airway.
18. bones that assist in respiration
21. is the passage leading from your mouth and throat to your stomach.
24. cessation of breathing