foregut

The cephalic portion of the primitive digestive tube in the embryo. From its endoderm arises the epithelial lining of the pharynx, trachea, lungs, esophagus, and stomach, the first part and cranial half of the second part of the duodenum, and the parenchyma of the liver, gallbladder, and pancreas. SYN: headgut.

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fore·gut -.gət n

1) the anterior part of the alimentary canal of a vertebrate embryo that develops into the pharynx, esophagus, stomach, and extreme anterior part of the intestine

2) the anterior part of the definitive alimentary canal of an invertebrate animal

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n.

the front part of the embryonic gut, which gives rise to the oesophagus (gullet), stomach, and part of the small intestine (from which the liver and pancreas develop).

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fore·gut (forґgət) 1. the endodermal canal of the embryo cephalic to the junction of the yolk stalk; it gives rise to the pharynx, lung, esophagus, stomach, liver, and part of the duodenum. 2. the anterior, chitin-lined, ectodermal portion of the alimentary tract of invertebrates, such as arthropods; it usually comprises a pharynx, crop, and proventriculus.