Ventilatory System

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Across
  1. 4. airway in the respiratory system that conducts air into the lungs
  2. 5. known as the oral/buccal cavity
  3. 6. smaller branches of air passageways
  4. 9. known as voice box and protects the lower airways
Down
  1. 1. tiny sacs where exchange of oxygen and carbon dioxide happens
  2. 2. known as the windpipe
  3. 3. a muscular tube that serves as a passageway for food
  4. 7. primary organ of smell
  5. 8. spongy, air-filled organ on either side of the chest