Respiratory system

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Across
  1. 2. A chronic lung disease with irreversible bronchial obstruction
  2. 4. A pulmonary function test that determines the presence of restrictive and obstructive disorders
  3. 7. (plural — alveoli) Structures where gas exchange occurs
  4. 8. The main organs of respiration
  5. 9. A disease characterized by reversible bronchial obstruction
Down
  1. 1. A screening X-ray method for examining the chest
  2. 3. Gas essential for breathing
  3. 5. A device used to measure blood oxygen saturation
  4. 6. Inflammation of the lungs