Respiratory System

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Across
  1. 4. exchange of gases between the blood and the body cells
  2. 5. tube that connects the pharynx to the lungs
  3. 8. maximum amount of air a person can inhale and exhale
  4. 10. on of the two branches of the trachea that enters the lungs
  5. 11. very shallow breathing
  6. 13. the primary entrance for air into the respiratory system
  7. 14. small tube that branches from the bronchi within the lungs
  8. 15. flap of tissues that covers the trachea
Down
  1. 1. rapid breathing
  2. 2. exchange of gases between the atmosphere and the blood
  3. 3. voice box that houses the vocal chords
  4. 6. throat; passageway for food to the esophagus and air to the larynx
  5. 7. process by which molecules move from an area of higher concentration to an area of lower concentration
  6. 9. tiny air sacs in the lungs
  7. 12. where air enters the body through the nostrils or mouth