gastrointestinal tract

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gastrointestinal tract

[¦ga·strō‚in′tes·tən·əl ′trakt]
(anatomy)
The stomach and intestine.
References in periodicals archive ?
Anatomy of the digestive tube, histology and histochemistry of the foregut and salivary glands of Rhinocricus padbergi Verhoeff (1938)(Diplopoda: Spirobolida: Rhinocricidae).
argenteus is a freshwater species with iliophagous eating habits and a digestive system featuring an oropharyngeal cavity, esophagus and rectum digestive tube in formation on the 3rd DAH.
The stomach is an expanded part of the digestive tube that lies beneath the diaphragm.
The digestive-tube length (distance between the beginning of the esophagus and the end of the rectum; DTL) was measured in order to establish the DTL/SL ratio (digestive tube length/standard length) and evaluate a possible relationship to the diet of P.
fortunei (whole and live) found in the digestive tube of the captured fish species.
In all regions of the digestive tube, the wall of the gut consists of three layers--a folded innermost luminal (digestive) epithelium, which is endodermal in origin; an outermost complex muscular mesothelium (gut coelomic epithelium), which derives from the mesoderm; and a connective tissue layer, sandwiched between the two epithelia and delimited by their basal laminae.
Finally, its last remnants were removed, and she received a healthy digestive tube, from esophagus to anus.
The results show, that the digestive tube of this specie has the same general structural pattern that is characteristic of the insects, present the following differences with other sap sucker Hemiptera: absence of gastric caeca and peritrofhic membrane, presence of granular unicellular glandular cells and glandular tissue surrounding the midgut.
In ruminant animals, an expanded area along the digestive tube harbors a population of microbes that assist in digestion through the fermentation of feed materials.
A report commissioned by the prime minister found that most French people already consider wine as food, if food is defined as "a substance with nutritive components absorbed by the digestive tube." By that definition, lots of things, ranging from library paste to shoe leather, are food.
The lake animals directly assimilate some of the elements dissolved in the water and organize them: it is from these dissolved materials that they obtain the silica and calcium they use to make their shells; and the water that passes through their digestive tube provides without doubt some assimilable organic materials.
Your earthworm has a deformed digestive tube. So you .