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glottis vs. epiglottis

glottis

[glot-is] / ˈglɒt ɪs /

noun

Anatomy.

glottises, glottides

epiglottis

[ep-i-glot-is] / ˌɛp ɪˈglɒt ɪs /

Anatomy.

epiglottises, epiglottides

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