Respiratory System

2. Attached to the thyroid cartilage, a very flexible piece of elastic cartilage that covers the opening of the trachea.
6. A flat dome shaped muscle located at the base of the lungs and thoracic cavity.
8. Normal breathing.
9. A passageway for both air and food and borders the nasopharynx and the oral cavity.
12. Red blood cells.
14. A ridge of cartilage that separates the two main bronchi.
17. Difficulty breathing.
19. Exhalation or the process of causing air to leave the lungs.
21. Causing cancer.
23. A tube formed by skeletal muscle and lined by mucous membrane that is continuous with that of the nasal cavities. Also known as the throat.
25. A condition the lasts over a long time with periods of exacerbation and periods of remission

1. Composed of the vestibular folds the true vocal cords and the space between these folds.
3. Connects the pharynx to the trachea and helps regulate the volume of air that enters and leaves the lungs. Also known as the voice box.
4. An airway and is continuous with the nasal cavity.
5. A small bulbous teardrop-shaped structure located at the apex of the soft palate.
7. Pertaining to abnormal color of blue caused by deoxygenation.
10. The lysozyme enzyme and proteins which have antibacterial properties.
11. Substance that dilates the bronchi and bronchioles.
13. Excessive flow or discharge from the nasal cavity.
15. Unconsciously regulates
16. Pertaining to front
18. Non-cancerous.
20. Forced breathing or breathing that is excessive.
22. Extends from the larynx toward the lungs.
24. A depression on the medial surface of the lungs that forms an opening for the bronchus blood vessels and nerves.