Respiratory System

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Across
  1. 3. THE TERM GIVEN TO BREATHING OUT
  2. 5. THIS FLUID CARRIES GASES AROUND THE BODY
  3. 6. THE BONES THAT PROTECT THE LUNGS FROM DAMAGE
  4. 8. DOES OXYGEN MOVE INTO OR OUT OF THE BLOOD?
  5. 10. DOES CARBON DIOXIDE MOVE INTO OR OUT OF THE BLOOD?
  6. 13. THE GAST THAT THE BODY NEEDS TO GET RID OF (6,7)
  7. 15. SMALL SACS WHERE GAS EXCHANGE OCCURS
  8. 19. THE NAME OF THE TUBES THAT SPLIT INTO TWO AFTER THE TRACHEA
  9. 20. TINY BLOOD VESSELS THAT SURROUND THE ALVEOLI
Down
  1. 1. TINY HAIRS IN THE NOSE THAT REMOVE PARTICLES
  2. 2. ALLOWS AIR TO ENTER THE BODY
  3. 4. THE SCIENTIFIC NAME FOR THE VOICE BOX
  4. 7. PROGRESSIVELY SMALLER TUBULAR BRANCHES OF THE AIRWAYS
  5. 9. THE GAS THAT IS REQUIRED FOR RESPIRATION
  6. 11. THE TUBE THAT CARRIES THE AIR FROM THE BRONCHI TO THE ALVEOLI
  7. 12. THE MUSCLE UNDER THE LUNGS THAT CONTRACTS TO BRING AIR INTO THE LUNGS
  8. 14. THE TERM GIVEN TO BREATHING IN
  9. 16. INHALED AIR CONTAINS MORE OF THIS GAS THAN EXHALED AIR
  10. 17. ONE OF THE FEAUTURES OF THE ALVEOLAR WALL THAT MAKES IT EFFICIENT AT GAS EXCHANGE
  11. 18. THE TUBE THAT IS STRENGTHENED BY CARTILAGE THAT TAKES THE AIR FROM THE PHARYNX TO THE LUNGS