Respiratory System

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Across
  1. 3. Passageway for air at the back of the throat
  2. 4. Movement of gases between alveoli and capillaries
  3. 8. capacity Maximum amount of air that can be exhaled after a deep breath
  4. 10. Main muscle responsible for breathing
  5. 13. Voice box located at the top of the trachea
  6. 14. Smaller airways that branch from the bronchi
  7. 15. Tiny air sacs where gas exchange occurs
  8. 16. Movement of air in and out of the lungs
  9. 17. Gas inhaled into the lungs for energy production
  10. 18. Two main airways branching from the trachea
  11. 19. Organs where oxygen enters the blood
Down
  1. 1. Breathing out
  2. 2. Breathing in
  3. 5. rate Number of breaths taken per minute
  4. 6. Tiny blood vessels surrounding alveoli
  5. 7. Windpipe that carries air to the lungs
  6. 9. dioxide Waste gas exhaled from the body
  7. 11. volume Amount of air breathed in or out per breath
  8. 12. Process of using oxygen to produce energy