Respiratory System

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Across
  1. 2. the passages that direct air into lungs
  2. 4. tiny sacs of lung tissue specialized for the movement of gases between air and blood
  3. 7. tiny hairlike extensions that move together in a sweeping motion
  4. 10. folds of connective tissue that stretch across the opening of the larynx and produce a person's voice
Down
  1. 1. the main organs of the respiratory system
  2. 3. the process in which oxygen and glucose undergo a complex series of chemical reactions inside cells
  3. 5. the voice box, located in the top part of the trachea, underneath the epiglottis
  4. 6. a large, dome-shaped muscle that plays an important role in breathing
  5. 8. the windpipe, a passageway through which air moves through the respiratory system
  6. 9. the throat, part of both the respiratory and digestive systems