Gas Exchange- Biology

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Across
  1. 6. exercise without oxygen
  2. 8. tubes in the lungs that branch off from the larger version of itself.
  3. 10. the title
  4. 12. the region between the abdomen and the root of the neck. It also has a wall
  5. 13. ballon shaped structures that are at the end of the respirtory tree
Down
  1. 1. muscle that allows us to breath
  2. 2. a group of muscles found between the ribs
  3. 3. the airway that conducts air into the lungs
  4. 4. deficit of oxygen
  5. 5. we need to do this to survive
  6. 7. a tube in your neck
  7. 9. the supply of air to the lungs
  8. 11. exercise with oxygen