Respiratory System

3. Structure used to protect the larynx
5. the division of the trachea
6. The smaller lung with two lobes
9. Hair-like structures that lines the trachea
10. Lines the interior of the nasal cavity
11. The membrane that lines the walls of the thoracic cavity
13. Protects the superior opening of the larynx when swallowing occurs
14. The four cranial cavities that produce mucus
15. Air enters the nose by passing through these structures
19. a depression in the heart where the heart sits
21. Tonsils located in the oropharynx at the end of the soft palate
22. Chemical inflation & deflation of lungs and cellular respiration in each cell
23. the structure that separates the nasal cavity from the oral cavity
24. smaller branch of a bronchus
26. Part of the mucous membrane of the larynx forms a pair of folds
28. The slit-like passageway between the vocal cords
30. cords that drain tears from eyes, also empty into nasal cavities
32. The lowest portion of the pharynx
33. action used to force an object out of the trachea
35. Tonsils located high in the nasopharynx; also known as adenoids
36. The passage that connects the nasal cavity to the top of the throat

1. The membrane that lies against the lungs
2. Mechanical process of pulling air in and out using muscles and pressure
4. Warms the surrounding air in the nasal cavity
7. The cartilage used to support the trachea
8. The larger lung with three lobes
12. The diaphragm relaxes (moves up) forcing air out of the lungs; also known as exhalation
16. Air flows into the lungs; also known as inhalation
17. Voice box
18. The passageway for food and air
20. Trap and remove bacteria or other pathogens entering the throat
25. The part of the pharynx between the soft palate and the epiglottis
27. This action hinders ciliary activity and destroys the cilia
29. Site of gas exchange
31. The three uneven mucosa covered lobes that consist of the nasal cavity
34. The windpipe