Learn More of the Respiratory Sytem

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Across
  1. 2. apart of the upper respiratory tract
  2. 4. receive oxygenated blood and return it to the left side of the heart
  3. 9. air goes into larynx and trachea
  4. 11. gas exchange between blood in capillaries and tissues
  5. 12. volume of air inhaled and exhaled in one breath
  6. 14. diaphragm is relaxed
  7. 15. pressure in lungs rise and air flows out
Down
  1. 1. smaller branches and lack in cartilage
  2. 3. transforms air to and from lungs
  3. 5. a device used to measure lung capacity
  4. 6. small or chronic inflammation of bronchi
  5. 7. a disorder caused by episodic allergic responses
  6. 8. assists in sound production
  7. 10. transports air to and from lungs
  8. 13. apart of the lower respiratory tract