The Respiratory System

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Across
  1. 2. comes from the Greek word meaning 'to gasp'
  2. 4. infection of the lung tissue
  3. 7. organ that is divided to primary, secondary & tertiary
  4. 8. main external respiratory organ
Down
  1. 1. what the respiratory system is primarily responsible for
  2. 3. known as the 'windpipe'
  3. 5. known as the 'voicebox'
  4. 6. central organs of respiration