Across
- 4. These large organs inhale oxygen and exhale carbon dioxide.
- 6. The two pipes that lead into your lungs that break off from the trachea.
- 7. A round dome-shaped muscle that helps the lungs inhale and exhale.
- 8. Tiny sacs at the end of bronchioles that convert air into blood.
- 9. Air is normally inhaled through this.
Down
- 1. A piece of flesh in your throat that covers your trachea when you eat.
- 2. A condition which airways are swollen and have mucus.
- 3. Smaller tubes that branch off the bronchi to deliver air to the alveoli.
- 5. The passage in your throat where air travels.