Respiration

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