Respiratory system

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Across
  1. 3. hoarseness of voice
  2. 5. difficulty breathing
  3. 7. inflammation of the lining of your lungs.
  4. 8. body's way of responding when something irritates your throat or airways.
  5. 9. common symptom of upper respiratory tract infection
  6. 10. buildup of a pus.
Down
  1. 1. common cause of rhinitis.
  2. 2. inflammation of tonsil.
  3. 4. Main symptoms of asthma.
  4. 6. air around or outside the lung.