RESPIRATORY SYSTEM

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Across
  1. 4. LONG TUBE THAT CONNECTS NOSE TO LUNGS
  2. 5. PLACE WHERE THE EXCHANGE OF OXYGEN AND CARBON DIOXIDE OCCURS
  3. 6. SACS THAT INFLATE WHEN YOU BREATH IN
  4. 7. IT HAS HAIR TO FILTER THE AIR
Down
  1. 1. MUSCLE BELOW LUNGS THAT MOVES DOWNWARDS WHE YOU INHALE
  2. 2. TWO PARTS WHICH IS DIVIDED THE TRACHEA IN
  3. 3. THEY CONNECT BRONCHI TO THE LUNGS