Respiratory System

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Across
  1. 5. A hollow tube (wind pipe) that connects the larynx to the right and left bronchus.
  2. 6. The passage that leads from the cavities of the nose and mouth to the larynx and esophagus
  3. 7. An uncontrolled growth of abnormal cells in the lungs
  4. 8. The airs sacks at the end of the bronchioles where the gas exchange takes place (oxygen in and carbon dioxide out)
  5. 10. A series of organs which take in oxygen and give off carbon dioxide
  6. 11. Primary organs of the respiratory system
Down
  1. 1. The smallest air passageways coming off of the bronchi
  2. 2. A sheet of internal skeletal muscle that extends across the bottom of the thoracic cavity (heart/lungs)
  3. 3. A flap of elastic cartilage attached to the larynx that closes when food passes by
  4. 4. The two major air passageways leading from the trachea to the lungs.
  5. 9. Hollow muscular organ which holds the vocal cords which produce sound