Respiratory System

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Across
  1. 1. Your Lungs are the only organ that _____.
  2. 5. protects your lungs
  3. 7. condition that narrows airways in your lungs and produces excess mucus
  4. 8. small air sacs attached to the ends of bronchioles
Down
  1. 2. protect small organs such as the bronchi, bronchioles and alveoli
  2. 3. passage for inspired and expired air to travel
  3. 4. split section of the trachea
  4. 6. separates the chest and abdominal cavity