mesenteron

Mes*en"te*ron, n. Etym: [NL. See Meso-, and Enteron.] (Anat.) Defn: All that part of the alimentary canal which is developed from the primitive enteron and is lined with hypoblast. It is distinguished from the stomod, a part at the anterior end of the canal, including the cavity of the mouth, and the proctod, a part at the posterior end, which are formed by invagination and are lined with epiblast.

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