respiratory system

2. divisions of the trachea that lead into the left and right lungs.
3. roof of the mouth formed by the fusion of the 2 maxillae bones.
5. the muscular tube extending from the posterior of the nasal cavities to the esophagus.
8. air enters the nose by passing through the...
10. lymphoid tissue aggregates situated near the entrance of the digestive and respiratory tracks.
11. the volume of air that can be expelled from the lungs by forcible expiration after the deepest inspiration.
14. any portion or wall separating 1 area from another.
16. the wind pipe; the respiratory tube extending from the larynx to the bronchi
17. the opening between the vocal cords in the larynx.
19. the only external organ of the respiratory system.
20. the elastic cartilage at the back of the throat; covers the glottis during swallowing.
21. the interior of the nose or the structure which opens exteriorly at the nostrils.
23. form the walls of the nasal cavity that increase air turbulence and the surface area of mucous membrane exposed to the air to aid in warming and moistening.
25. spasms in the bronchi of the lungs, causing difficulty in breathing.

1. portion of the roof of the mouth that is not supported by bone.
4. the production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi.
6. failure of bones forming the palate to fuse medially.
7. organs of the respiratory system responsible for air exchange with the outside and gas exchange with the blood.
9. a group of lung diseases that make it hard to breathe.
12. amount of air inhaled or exhaled with normal breath.
13. the smallest conducting passages in the lungs.
15. air remaining in the lungs after exhalation that cannot be voluntarily exhaled.
18. the process of supplying the body with oxygen and removing carbon dioxide.
22. tonsils become inflamed and swollen.
24. the cartilaginous organ located between the trachea and the pharynx.