Respiratory System

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Across
  1. 5. a passage or airway in the lower respiratory tract
  2. 7. carries air to and from your lungs (also known as windpipe)
  3. 11. muscles that run between ribs and form the chest wall
  4. 12. responsible for producing sound (voice box)
  5. 14. an air sack/ air space
  6. 15. releasing air during the breathing process
Down
  1. 1. uses oxygen and releases carbon dioxide as a waste product
  2. 2. carries air to the lungs during inhalation process
  3. 3. Gases moving from a high pressure to a lower pressure
  4. 4. when the body brings in oxygen
  5. 6. a condition when a cartilage covers the windpipe
  6. 8. A flexible connective tissue used throughout the body
  7. 9. filters, warms and moistens air as it travels to the lungs
  8. 10. a rich iron protein which carries fresh oxygen to your cells
  9. 13. an organ that allows the breathing process to occur