foregut


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fore·gut

 (fôr′gŭt′)
n.
1. The anterior part of the embryonic digestive tract of a vertebrate from which the pharynx, lungs, esophagus, stomach, liver, pancreas, and duodenum develop.
2. The first part of the digestive tract of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard.

foregut

(ˈfɔːˌɡʌt)
n
1. (Zoology) the anterior part of the digestive tract of vertebrates, between the buccal cavity and the bile duct
2. (Zoology) the anterior part of the digestive tract of arthropods

fore•gut

(ˈfɔrˌgʌt, ˈfoʊr-)

n.
1.
a. the first portion of the vertebrate alimentary canal extending from the pharynx to the end of the stomach.
b. the first portion of the alimentary canal in arthropods and annelids.
2. the upper portion of the embryonic vertebrate alimentary canal from which the pharynx, esophagus, lungs, stomach, duodenum, liver, and pancreas develop.
Compare hindgut, midgut.
[1885]
Translations

fore·gut

n. intestino anterior, porción cefálica del tubo digestivo primitivo en el embrión.
References in periodicals archive ?
Serial transverse sections were cut through the foregut at the following developmental stages: larvae at hatching and at 8, 13, 24, 31, 42, and 49 days post-hatching (one to four specimens each) and post-larvae at 6, 12, 24, and 48 h after velum loss and 3, 4, and 5 days after velum loss (two specimens each).
Neuroenteric cysts are foregut duplication cysts associated with vertebral anomalies.
The foregut analyses of many commercially important shrimps have shown that penaeid shrimps are omnivorous and benthic faunas are dominant in their diet followed by detritus [1-5].
The mechanism by which exclusion of the duodenum and upper jejunum reverses diabetes (the so-called foregut theory) has not been fully explained, and "without data regarding the change in gut hormones, such as glucagon, gastric inhibitory peptide, and glucagon-like peptide 1, we cannot elucidate the underlying mechanisms," the investigators added.
His special interests are in benign and malignant diseases of the foregut and pancreas.
The saliva of the Guatemalan potato moth larvae (Tecia solanivora), a major pest, which forces many farmers to spray plants with pesticides in South America, contains compounds in its foregut that elicits a system-wide response in the Colombian Andes commercial potato plant (Solanum tuberosum), researchers have found.
The high-risk procedures included nonesophageal thoracic surgery, which had a 3.8-fold risk of postoperative pneumonia, compared with the lowrisk operations, and aortic (2.6), intestinal (2.5), brain (2.9), foregut and hepatopancreatobiliary (4.1), and other abdominal operations (2.1).
No other abnormalities of the foregut were identified.
The proventriculus is an organ situated between the foregut and midgut, its lumen lined by cuticle with teeth-like projections.
(1990), Wolfe and Felgenhauer (1991), Mikami and Takashima (1993) and Lemmens and Knott (1994), in which substantial morphological changes occurred in the digestive system during metamorphosis by the reduction of mandibles and the number of setae in the mouthpart appendages and poorly developed foreguts. Abrunhosa and Kittaka (1997a,b) reported similar observations during non-feeding stages in megalopae (transitory stage) of Paralithodes crabs (an important fishing resource of the Northern Pacific) related to the poorly developed feeding appendages (mouthparts and foregut) and, more recently, during the zoeal stages of the thalassinid Lepidophthalmus siriboia Felder and Rodrigues, 1993.
These are also known as bronchopulmonary foregut malformations, comprising congenital cystic adenomatoid malformation (CCAM), congenital pulmonary airway malformation (CPAM), congenital lobar emphysema (CLE), broncho pulmonary sequestrations (BPS) and bronchogenic c ysts.
Then, 21 tissues (telencephalon, hypothalamus, mesencephalon, cerebellum, myelencephalon, liver, spleen, heart, eye, skin, foregut, gill, white muscle, hindgut, midgut, red muscle, trunk kidney and gonad) were removed immediately and stored in liquid nitrogen.