gastrointestinal tract

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Related to Human gastrointestinal tract: gastrointestinal system, Gastric system

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.

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.
References in periodicals archive ?
The expression of NADPH and nNOS in enteric neurons and nerves was found in the same location in the entire human gastrointestinal tract. Immunoreactivity to anti-c-Kit protein antibody was observed in the space between the circular and longitudinal muscle layers surrounding the myenteric plexus (Figure 2, A).
The human gastrointestinal tract contains an extremely complex and diverse population of bacteria.
Escherichia coli is both the most abundant facultative commensal of the human gastrointestinal tract and the most common bacterial cause of human diarrhea (1).
The bacterial population of the human gastrointestinal tract constitutes an enormously complex ecosystem.
smithii is the predominant organism in the human gastrointestinal tract responsible for methane production.
The healthy human gastrointestinal tract is home to 100 trillion microorganisms (roughly), which help promote healthy GI function, systemic metabolism and immune function.
To the Editor: Salmonella Enteritidis, a predominantly localized pathogen of the human gastrointestinal tract, can become invasive in very young, very old, malnourished, and immunocompromised patients.
The study will assess the ability of a commercially available, widely studied probiotic strain, Lactobacillus acidophilus DDS-1, and two other lactobacilli to survive through the stomach and persist in the human gastrointestinal tract.
They immediately recognized the rapid division behaviour as being very similar to that of the human gastrointestinal tract.

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