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NCI Dictionary of Cancer Terms

epiglottis  listen  (eh-pih-GLAH-tis)

  The flap that covers the trachea during swallowing so that food does not enter the lungs.

Anatomy of the larynx; drawing shows the epiglottis, supraglottis, glottis, subglottis, and vocal cords. Also shown are the tongue, trachea, and esophagus.