Respiratory System

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Across
  1. 3. A rigid tube that brings air into the lungs from the atmosphere
  2. 5. Is an inflammatory process of the lungs
  3. 6. Designed to boost the body's natural defenses to fight the cancer
  4. 7. The movement of air in (inhalation) and out of the lungs (exhalation)
Down
  1. 1. Refers to collapse of the lung due to obstruction of an airway
  2. 2. Is caused by Mycobacterium tuberculosis
  3. 4. When the walls of the bronchi become thickened and weakened by repeated infections and inflammation