THE RESPIRATORY SYSTEM

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Across
  1. 2. Passage through which inhaled air gets to the lungs and exhaled air leaves the body
  2. 4. Warms inhaled air and traps microbes
  3. 7. Protects lungs
  4. 8. Second largest organs in the body, helps take in oxygen and expel carbon dioxide.
  5. 9. Site of gaseous exchange
Down
  1. 1. Lined with mucus and hair which filters inhaled air
  2. 3. Contains vocal cords, contains mucus secreting cells which helps to traps dust particles and microbes in air
  3. 4. Allows air to enter body, contains hairs that filters air
  4. 5. Contracts and relaxes to facilitate gaseous exchange
  5. 6. Passage through which air enters lung and into air sacs