gastrointestinal tract

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tract

 [trakt]
a longitudinal assemblage of tissues or organs, especially a number of anatomic structures arranged in series and serving a common function, such as the gastrointestinal or urinary tract; also used in reference to a bundle (or fasciculus) of nerve fibers having a common origin, function, and termination within the central nervous system.
alimentary tract alimentary canal.
biliary tract the organs, ducts, and other structures that participate in secretion (the liver), storage (the gallbladder), and delivery (hepatic and bile ducts) of bile into the duodenum. See illustration.
Anatomy of the gallbladder and biliary tract. From Aspinall and Taylor-Robinson, 2002.
corticospinal t's two groups of nerve fibers (the anterior and lateral corticospinal tracts) that originate in the cerebral cortex and run through the spinal cord.
digestive tract alimentary canal.
dorsolateral tract a group of nerve fibers in the lateral funiculus of the spinal cord dorsal to the posterior column.
extrapyramidal tract extrapyramidal system.
gastrointestinal tract the stomach and intestine in continuity; see also digestive system.
iliotibial tract a thickened longitudinal band of fascia lata extending from the tensor muscle downward to the lateral condyle of the tibia.
intestinal tract see intestinal tract.
optic tract the nerve tract proceeding backward from the optic chiasm, around the cerebral peduncle, and dividing into a lateral and medial root, which end in the superior colliculus and lateral geniculate body, respectively.
pyramidal t's collections of motor nerve fibers arising in the brain and passing down through the spinal cord to motor cells in the anterior horns.
respiratory tract respiratory system.
urinary tract the organs and passageways concerned in the production and excretion of urine from the kidneys to the urinary meatus; see also urinary system.
uveal tract the vascular tunic of the eye, comprising the choroid, ciliary body, and iris.

gas·tro·in·tes·ti·nal tract

(G.I. tract) the stomach, small intestine, and large intestine; often used as a synonym of digestive tract.

gastrointestinal tract

gas·tro·in·tes·ti·nal tract

(gastrō-in-testi-năl trakt)
Stomach, small intestine, and large intestine; often used to mean digestive tract.

gastrointestinal tract

See ALIMENTARY CANAL.

Gastrointestinal tract

The entire length of the digestive system, running from the stomach, through the small intestine, large intestine, and out the rectum and anus.

gastrointestinal

pertaining to the stomach and intestine.

gastrointestinal foreign body
see intestinal obstruction.
gastrointestinal hormones
hormones secreted by the gastrointestinal epithelium that affect the function of the tract itself and of its allied organs, e.g. gastrin, glucagon, enteroglucagon, somatostatin, secretin, cholecystokinin-pancreozymin, motilin, gastric inhibitory polypeptide, vasoactive intestinal polypeptide.
gastrointestinal series
a radiological examination of the upper gastrointestinal tract using barium as the contrast medium for a series of x-ray films. Called also a barium meal. See barium study.
gastrointestinal tract
the stomach and intestines in continuity. See also digestive system.
References in periodicals archive ?
The digestive tubes were then preserved in 70% ethanol until analysis of diet contents.
Of the 160 analyzed individuals, 38 had empty digestive tubes.
The mesothelium of the digestive tube also shows signs of physiological cell turnover under normal conditions.
The autotomized region of the digestive tube, along with associated visceral organs such as hemal vessels, gonads, and one or both respiratory trees, is then expelled though the rupture in the cloacal wall (Emson and Wilkie, 1980; Garcia-Arraras et al.
After evisceration, the animals are left with the mesentery attached to the body wall and one (Dendrochirota) or both (Aspidochirota) terminal fragments of the digestive tube (Fig.
DISCUSSION: The present study of 78 Children of development errors of digestive tube, we have attempted to find out the incidence and pattern of anatomical presentation as pointed out earlier under various sections.
Persistence of vitelline duct and Exomphalos: There were 18 cases of these two anomalies of midgut area of digestive tube.
SUMMARY AND CONCLUSIONS: A study was done on the cases of developmental errors of the digestive tube which were either delivered in labour Room.
These ruptures result in the loss of the anterior end of the body, including the tentacles and aquapharyngeal bulb, together with the digestive tube.
By day 27 after evisceration, the anterior and posterior rudiments have come into contact and eventually fuse, forming a continuous digestive tube (Fig.
In adult apodids, some aspidochirotids, and juvenile dendrochirotid holothurians, the digestive epithelium has been shown to originate from the cells of the endodermally derived luminal epithelium of the remnants of the digestive tube (Bertolini, 1932; Smith, 1971a, b; Gibson and Burke, 1983; Garcia-Arraras et al.
CHRONOLOGY 1830 McVitie's is founded in Edinburgh 1839 The digestive is invented by two Scottish doctors 1902 Production starts at Harlesden 1925 Milk Chocolate Digestive first baked 1999 McVitie's Caramels launched 1999 McVitie's Milk Chocolate Digestive Tubes launches FACTS AND FIGURES * Biscuits possess 99% household penetration * The total UK biscuit market is now worth over 1.