Respiratory System

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Across
  1. 3. filtering out dust and other particles that enter the nose through the breathed air
  2. 5. airways that lead from the trachea into the lungs and then branch off into progressively smaller structures until they reach the alveoli, the tiny sacs that allow for the exchange of oxygen and carbon dioxide in the lungs
  3. 7. The bronchus in the lungs are lined with hair-like projections called
  4. 9. of its primary functions is to warm and Pharynx humidify air before it reaches the lungs
  5. 10. flap of tissue, covers the air-only passage
Down
  1. 1. when we swallow, keeping food and liquid from going into the lungs
  2. 2. allow us to breathe
  3. 4. transports air to and from the lungs when a person breathes
  4. 6. the passage leading from your mouth and throat to your stomach
  5. 8. produces vocal sounds and prevents the passage of food and other foreign particles into the lower respiratory tracts.