Across
- 3. Windpipe that attaches to the lungs, brings air into the lungs
- 4. Two main branches from the trachea to lead to each side of the lung
- 6. Entry and exit of air
- 7. Connects to the trachea is the voice box
- 8. Small sac where gas is exchanged
- 9. The main organ of respiration
Down
- 1. the site where the nose and the mouth passage joins
- 2. Small branches off the bronchi
- 5. Warms and moistens the air filters the particles in the air