Across
- 2. These tubes branch from the trachea into the lungs, each leading to a lung.
- 5. The muscle group located between the ribs that plays a major role in the process of breathing.
- 8. This muscle helps your lungs expand and contract, playing a crucial role in breathing.
- 9. The primary organ of the respiratory system, essential for gas exchange.
- 10. This tree-like structure branches into smaller tubes, leading directly to the lungs.
Down
- 1. The flap of tissue that prevents food from entering the windpipe.
- 3. The gas that is essential for life and is inhaled during breathing.
- 4. These tiny air sacs are where oxygen enters the blood and carbon dioxide is removed.
- 6. A common term for the windpipe.
- 7. The passage behind the nose and mouth, connecting them to the oesophagus; it's part of both the respiratory and digestive systems.
