midgut /mid·gut/ (mid´gut) the region of the embryonic digestive tube into which the yolk sac opens and which gives rise to most of the intestines; ahead of it is the foregut and caudal to it is the hindgut.
midgut
mid·gut (m d g t )n. 1. The middle section of the digestive tract in a vertebrate embryo from which the ileum, jejunum, and portions of the duodenum and colon develop. Also called mesenteron. 2. The middle portion of the digestive tract of certain invertebrates, such as arthropods, that is lined with an enzyme-secreting tissue and that serves as the main site of digestion and absorption. |
midgut
Etymology: AS, midd + guttas
the central portion of the embryonic alimentary canal, between the foregut and the hindgut. It consists of endodermal tissue, is connected to the yolk sac during early prenatal development, and eventually gives rise to some of the small intestine and part of the large intestine. Compare foregut, hindgut.
midgut
the region of the embryonic digestive tube into which the yolk sac opens; ahead of it is the foregut and caudal to it is the hindgut.
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