Respiratory System

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Across
  1. 3. Tiny sacs of lung tissue for the movement of gasses
  2. 5. The passages that direct air into the lungs
  3. 6. Dome shaped muscle underneath the lungs
  4. 7. Also known as the voice box
Down
  1. 1. The throat
  2. 2. warms filter and moisten the incoming air
  3. 4. Known as the windpipe.
  4. 7. Exchanges air gasses between the blood and the atmosphere