glottis vs. epiglottis

noun

Anatomy.
plural glottises, glottides
  1. the opening at the upper part of the larynx, between the vocal cords.


noun

Anatomy.
plural epiglottises, epiglottides
  1. a thin, valvelike, cartilaginous structure that covers the glottis during swallowing, preventing the entrance of food and drink into the larynx.