Lexicon: Epiglottis

The epiglottis is a flap-like cartilage structure located at the base of the tongue, near the entrance to the trachea. During swallowing, the epiglottis folds downward to cover the trachea, preventing food and liquids from entering the airway and lungs. When breathing and speaking, the epiglottis moves based on the position of the root of the tongue, narrowing or widening the pharynx.