The Respiratory System

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Across
  1. 2. voice box
  2. 5. Throat portion of the respiratory system
  3. 6. where the lungs and the blood exchange oxygen and carbon dioxide
  4. 9. has incomplete cartilaginous walls that are stabilized by ligaments and skeletal muscles
Down
  1. 1. carry air to and from your lungs
  2. 3. windpipe
  3. 4. Has two distinct phases
  4. 7. the center of your whole respiratory system
  5. 8. play an important role in locomotion