Across
- 4. Tiny air sacs where the exchange of gases between air and blood takes place.
- 5. The trachea divides into these right and left branches.
- 6. Smaller branches of the bronchi.
- 9. bronchial spasm resulting in decreased air movement and air trapped in the alveoli.
- 10. Inflammation of the lining of the bronchial tubes
- 11. Blood vessels surrounding the air sacs.
- 12. Moist membrane covering the lung and chest cavity wall on the inside.
- 13. Area at the back of the throat where the mouth and nasal cavity meet.
Down
- 1. Flap of tissue which prevents food from entering windpipe during swallowing.
- 2. Tube leading from the larynx to the bronchi.
- 3. Opening to the windpipe.
- 7. Contains the vocal cords.
- 8. Flat sheet of muscle separating the chest cavity from the abdominal cavity.
- 12. Infections of the lungs caused by viruses, bacteria or fungi.