foregut

American  

[fawr-guht, fohr-] / ˈfɔrˌgʌt, ˈfoʊr- /

noun

1. Zoology.

   1. the first portion of the vertebrate alimentary canal, extending from the pharynx and esophagus to the end of the stomach or gizzard and, in some animals, the anterior duodenum, functioning in the ingestion, temporary storage, and partial digestion of food.

   2. the first portion of the alimentary canal in arthropods and annelids, composed of ectodermal, chitin-lined tissue and usually comprising the pharynx, esophagus, crop, and gizzard.

2. Embryology. (in mammals) the upper part of the embryonic alimentary canal from which the pharynx, esophagus, lung, stomach, liver, pancreas, and part of the duodenum develop.

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foregut British  

/ ˈfɔːˌɡʌt /

noun

1. the anterior part of the digestive tract of vertebrates, between the buccal cavity and the bile duct

2. the anterior part of the digestive tract of arthropods

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Etymology

Origin of foregut

First recorded in 1885–90; fore- + gut

Example Sentences

A new model for the creature includes a ring of teeth around its mouth, a simple pair of eyes, and a foregut lined with tiny little teeth.

From The Verge • Jun. 24, 2015

A mouth opening that is ventral to the rhynchocoel leads into the foregut, followed by the intestine.

From Textbooks • Jan. 1, 2015

At about this same time, an protrusion of endodermal tissue extends anteriorly from the foregut, producing a lung bud, which continues to elongate until it forms the laryngotracheal bud.

From Textbooks • Jun. 19, 2013

The lung bud is a dome-shaped structure composed of tissue that bulges from the foregut.

From Textbooks • Jun. 19, 2013

Figure 4H is seventy-nine sections posterior to the last, and passes through the foregut, ent, just cephalad to the anterior intestinal portal and caudad to the heart.

From Development of the Digestive Canal of the American Alligator by Reese, C. M.