respiratory system

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Across
  1. 1. what takes up most of the thoratic cavity
  2. 3. what takes air into the lungs?
  3. 4. pharynx is the what section of the group?
  4. 6. external what are 2 sections of the nasal cavity
  5. 7. another w3ord for the voice box
Down
  1. 2. what is the space between the cords called in the larynx
  2. 5. what is the 4th section to the respiratory system pathway