The Respiratory System

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Across
  1. 4. Attaches the vocal cords in the larynx
  2. 6. Common passageway for the respiratory and digestive tracts (Throat)
  3. 10. (2 words) area in the medulla oblongata of the brain stem
  4. 12. Connects the throat to the stomach
  5. 13. one of the two muscles that aid in inspiration
  6. 14. volume volume of air inspired and expired during one breath
  7. 15. Windpipe
  8. 17. This structure houses the vocal cords
  9. 19. subdivision on the lung
Down
  1. 1. lack of oxygen
  2. 2. One of the three functions of nasal passages
  3. 3. The bifurcation of the trachea
  4. 5. (2 words) Conducts air between the nostrils and the pharynx
  5. 7. End of the bronchial tree, to which the alveoli sacs connect
  6. 8. contains the heart, trachea, esophagus, blood vessels, and nerves
  7. 9. The opening to the larynx
  8. 11. Scroll-like bones that fill most of the space in the nasal cavity
  9. 16. Thin-walled sacs in the lungs where O2 exchange takes place
  10. 18. Another word for nostrils