Respiratory System

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Across
  1. 2. The crossing point of the digestive and respiratory system
  2. 3. Vocal cords
  3. 4. Two air passages into the lungs
  4. 6. Air sacs that exchange O2 and CO2
  5. 7. Also known as the windpipe
  6. 8. Spongy, elastic organ under the ribcage
Down
  1. 1. Smaller branches within the lungs
  2. 5. The beginning of the Respiratory System