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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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.
Farlex Partner Medical Dictionary © Farlex 2012

gas·tro·in·tes·ti·nal tract

(gastrō-in-testi-năl trakt)
Stomach, small intestine, and large intestine; often used to mean digestive tract.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

gastrointestinal tract

See ALIMENTARY CANAL.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Therefore, we considered that SI may promote innate immune response to combat sepsis, as a compensation for suppressed adaptive immune response in the process of repairing the intestinal mucosa.
Note the distinct change in diameter of the intestine at the obstruction site (arrow), (b) Postmortem, the ventriculus of the bird described in Figure 1 was saturated with silica-like material that was different from the normal grit found in this species; additionally, microabrasions and severe petechia of the intestinal mucosa were observed (not shown), (c) Postmortem photograph of the caseous plug causing the fatal intestinal obstruction in lesser flamingos.
We speculated that CAY10683 could protect intestinal epithelial barrier disruption and keep the integrity of tight junction through inhabiting TLR4/MyD88 signal pathway, and CAY10683 can be considered as a therapeutic drug for protecting intestinal mucosa in ALF.
Data showed that the intestinal mucosa is a site that induces an effective mucosal immune response, and the immunization method is simple and easy to operate [56].
Moreover, amino acids such as glutamate, glutamine and aspartate are important metabolic fuels for the small intestine to maintain digestive function and to maintain the integrity of the intestinal mucosa (Wu, 2014).
The three sections of the small intestine were each rinsed gently with sterile saline to clean out the contents, then the intestinal mucosa from each segment was carefully scraped off with a glass microscope slide, and snap-frozen in liquid [N.sub.2] for the further analysis.
The timing of disappearance is a good method to precisely define the stage of intestinal mucosa development.
Clinical manifestations occur as a result of intestinal mucosa damage and malabsorption in CD [5].
Biopsies from intestinal mucosa (ICD Group) and from mesenteric adipose tissue (ACD Group) were taken from 10 patients with ileocecal CD who underwent surgical resection.
Our results show that there was some damage on intestinal mucosa in acute biliary infection group, and Jinhong Tablet can improve the damage to some degree.
On the other hand, as the intestinal mucosa is one of the most rapidly proliferating organs in the human body, this tissue is able in part to regenerate itself after reperfusion [8].

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