Respiratory System Activities Challenge - Trachea

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Across
  1. 2. The muscle of the respiratory system that contracts and relaxes to move air into and out of the lungs.
  2. 5. The bones that protect the respiratory system.
  3. 6. The process of inhalation and exhalation.
  4. 9. Type of blood that has a high carbon dioxide concentration.
  5. 10. The process that uses glucose and oxygen to produce energy.
Down
  1. 1. The name of the process which allows gases to move from tissues into capillaries.
  2. 3. Type of blood that has a high oxygen concentration.
  3. 4. The organelle in which respiration takes place.
  4. 7. The tissue in which gas exchange takes place.
  5. 8. The act of taking air into the lungs.