RESPIRATORY SYSTEM

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Across
  1. 3. SPONGY SACK-LIKE ORGANS
  2. 4. CARTILAGE THAT COVERS THE ENTRANCE OF THE TRACHEA
  3. 6. GAS FORMED DURING RESPIRATION
  4. 8. COLORLESS AND ODORLESS. IT'S IN THE ATMOSPHERE
  5. 9. PART THAT GOES FROM THE MOUTH TO THE STOMACH
Down
  1. 1. TWO BRANCHES OF THE TRACHEA
  2. 2. AIR CELL IN THE LUNGS
  3. 3. LOCATED BETWEEN THE PHARYNX AND THE TRACHEA
  4. 5. IT IS ALSO CALLED WINDPIPE
  5. 7. COMPOSED OF MUSCLES AND TENDONS, DOMED-SHAPE.