Respiratory System

4. - is the throat
5. - an inflammatory condition in which areas of the throat become narrowed.
9. are thin walled air sacs covered with capillaries. Gas exchange between oxygen and carbon dioxide takes place here.
11. or the windpipe.
13. - inflammation of the bronchi caused by infection or exposure to smoke.
14. - inflammation of the tissues that line sinuses.
15. - hairlike structures found in the membranes of the nose that prevent bacteria and other particles from moving deeper in the respiratory system.

1. - inflammation of the lungs, caused by infection.
2. the main airways that reach into each lung.
3. - is in the base of the chest cavity and is a muscle that separates the chest muscle from the abdominal cavity.
6. - is a flap of tissue that located above the larynx. Folds and closes off the entrance when you swallow.
7. - Contagious bacterial infection that affects the lungs.
8. -bring air closer to the site of external respiration.
10. - is the voice box that connects to the pharynx and trachea.
12. - progressively destroys the walls of the alveoli.