Respiratory System

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Across
  1. 3. This gas is expelled by the body.
  2. 6. ______ routes the air to the windpipe.
  3. 7. Soft spongy organs located in the chest.
  4. 8. breathing in the air containing oxygen.
Down
  1. 1. It transports the air to the lungs.
  2. 2. They are the openings of the nose.
  3. 4. Flap like structure that controls the movement of food and air.
  4. 5. This gas is taken up by the body.