The Respiratory System

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Across
  1. 3. Process that causes air to leave lungs
  2. 5. Protects organs in the thoracic cavity and provides support for the upper extremities
  3. 7. Passes food and liquids from the mouth down to the stomach
  4. 8. Taking in oxygen and releasing carbon dioxide
Down
  1. 1. Protects nasal passageways and other parts of the respiratory tract
  2. 2. Process that causes air to enter lungs
  3. 4. A chronic disorder consisting of inflammation in the airways
  4. 6. An infection that inflames air sacs in one or both lungs