A leaf-shaped cartilage that acts as a lid over the larynx during swallowing, preventing food and liquids from entering the airway. It flips down to cover the vocal cords and trachea when you swallow.
From Greek 'epi' meaning upon or over and 'glottis' meaning opening of the larynx, literally meaning 'over the voice box.' The term describes its position and protective function.
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