1. The central portion of the digestive tube; the distal duodenum, small intestine, and proximal colon. 2. The portion of the embryonic gut tract between the foregut and the hindgut which originally is open to the yolk sac.

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mid·gut 'mid-.gət n
1) the middle part of the alimentary canal of a vertebrate embryo that in humans gives rise to the more distal part of the duodenum and to the jejunum, ileum, cecum and appendix, ascending colon, and much of the transverse colon
2) the mesodermal intermediate part of the intestine of an invertebrate animal

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the middle portion of the embryonic gut, which gives rise to most of the small intestine and part of the large intestine. Early in development it is connected with the yolk sac outside the embryo via the umbilicus.

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mid·gut (midґgut″) 1. the region of the embryonic digestive tract into which the yolk sac opens; it gives rise to most of the intestines. Ahead of it is the foregut and caudal to it is the hindgut. 2. the middle endodermal portion of the digestive tract of invertebrates, such as arthropods, comprising a stomach and sometimes a midintestine. Called also mesenteron.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Midgut — The midgut and hindgut. Latin mesenteron Carnegie stage …   Wikipedia

  • Midgut — Mid gut , n. [Mid, a. + gut.] (Anat.) The middle part of the alimentary canal from the stomach, or entrance of the bile duct, to, or including, the large intestine. [1913 Webster] …   The Collaborative International Dictionary of English

  • midgut — [mid′gut΄] n. 1. the middle part of the alimentary canal in vertebrate embryos 2. the endoderm lined portion of the digestive tract of arthropods …   English World dictionary

  • midgut — See: mesenteron [Martin, 2005]. See: mesenteron [McLaughlin, 1980]. (Order Cladocera): Elongate section of digestive tract between esophagus and hindgut. Occasionally one may distinguish between a more expanded stomach region anteriorly and a… …   Crustacea glossary

  • midgut — /ˈmɪdgʌt/ (say midgut) noun the middle part of the alimentary canal …  

  • midgut cecum — (Order Amphipoda): One of several tubular outpocketings of digestive tract. According to position, one may distinguish: (1) two pairs of posteriorly directed lateral ceca (two dorsal and two ventral) arising at stomach/midgut border and extending …   Crustacea glossary

  • midgut diverticulum — (Order Cladocera): Digestive cecum [Stachowitsch, 1992]. (Order Notostraca): Cecum [Stachowitsch, 1992]. (Order Anostraca): One of two short outpocketings of midgut. Located in head and opening into digestive tract posterior to esophagus/midgut… …   Crustacea glossary

  • midgut glands — Paired glandular or storage organs of decapod crustaceans; digestive juices from midgut glands flow via tubules into the caudal (midgut) portion of the posterior chamber. Often called fat, liver, or tomally. (Syn. hepatopancreas or digestive… …   Crustacea glossary

  • midgut loop — a U shaped loop of intestine that temporarily forms during the period of rapid elongation and rotation of the midgut in embryonic development. It projects into the proximal part of the umbilical cord, to which it is attached via the yolk stalk;… …   Medical dictionary

  • midgut volvulus — volvulus neonatorum involving the entire part of the intestines derived from the midgut …   Medical dictionary

  • midgut — noun Date: 1875 the middle part of an alimentary canal …   New Collegiate Dictionary

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