Respiratory System

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Across
  1. 4. movement of air in and out of the lungs.
  2. 6. exchange of gases between atmosphere, blood, and body cells.
  3. 8. act of breathing out (exhalation).
  4. 9. insertion of tube in the mouth or nose.
  5. 13. a procedure in reshaping the bone to achieve desired shape.
  6. 15. hair-like projections that sweep mucus to the pharynx.
Down
  1. 1. where the three olfactory sensors that are located in the interior part of the nasal cavity.
  2. 2. tiny air sacs in the lungs where gas exchange occurs.
  3. 3. act of breathing in (inhalation).
  4. 5. smaller branches of the bronchi that lead to alveoli.
  5. 7. flap that covers the trachea during swallowing.
  6. 10. membranous tube that consists of connective tissue and smooth muscle.
  7. 11. the main muscle of the respiratory system.
  8. 12. voice box; contains the vocal cords.
  9. 14. throat; common passageway for air and food.