Respiratory System

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Across
  1. 4. carries air from the throat to the lungs
  2. 6. the part of the throat situated below the mouth and nasal cavity
  3. 7. separates the thoracic cavity from the abdominal cavity
  4. 8. unites in the lungs that permit gas exchange between air in the lungs and the blood in the capillaries
  5. 9. narrow tubes made of elastic fibers and smooth muscle tissue
  6. 10. hair-like projections found in the epithelium of the nose
  7. 12. slippery secretion produced by the mucus membranes
Down
  1. 1. the division of the trachea from the left and right lung
  2. 2. a flap attached to the larynx
  3. 3. the part of the respiratory system that holds the vocal cords
  4. 5. a series of organs which take in oxygen and give off carbon dioxide
  5. 11. a pair of organs optimized for gas exchange between our blood and air