Respiratory Structure

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Across
  1. 2. cartilage that keeps food and water from going down the trachea
  2. 4. air sacs of the lungs
  3. 6. tubes that drain the ear and open into the pharynx
  4. 8. projections along the walls of the nose to make it circulate
  5. 9. bone that separates the nasal cavity from the oral cavity
  6. 12. the left lung has ________ lobes
  7. 13. muscular structure that separates the nasal cavity from the oral cavity
  8. 16. lipid (fat) molecule that coats the inside of the alveolar surfaces so that they don't collapse
  9. 17. slit between the vocal folds
Down
  1. 1. part of the throat that is behind the mouth
  2. 3. another name for the voicebox
  3. 5. sticky substance that traps particles
  4. 6. function in making the skull lighter
  5. 7. vibrate with expelled air to make sounds
  6. 10. the base of the lungs sits on top of the diaphragm
  7. 11. lymphatic tissue that is found in the pharynx
  8. 14. another name for the throat
  9. 15. windpipe