Respiratory System

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Across
  1. 2. tube that connects the pharynx to the lungs
  2. 6. respiration exchange of gases between the atmosphere and the blood
  3. 7. small tube that branches from the bronchi within the lungs
  4. 9. flap of tissues that covers the trachea
  5. 11. one of the two branches of the trachea that enters the lungs
Down
  1. 1. cavity where air enters the body through the nostrils or mouth
  2. 3. tiny air sacs in the lungs
  3. 4. process in which air is forced out of the lungs
  4. 5. respiration change of gases between the blood and the body cells
  5. 8. hair-like processes that provide upward movement of mucus cell secretions
  6. 10. throat; passageway for air to the larynx