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tract

A parcel of real estate; usually refers to a large area of land.

References in periodicals archive ?
Intolerances and allergies can cause excessive gas production or gas to become trapped in the gastrointestinal tract. The foods most likely to cause this are wheat or gluten.
Neuroendocrine cells are located between the epithelial cells of the mucosa in the gastrointestinal tract. NE cells are morphologically different from other mucosal cells and exhibit a number of distinct neural phenotypic features, but function like endocrine cells [15].
Rumen contents and feces in ruminants are often used to assess gastrointestinal microbiota [2,3], however, these sections do not represent the composition and diversity of microbiota in the entire gastrointestinal tract. Especially, the forestomach of ruminants, namely, rumen, reticulum and omasum contribute to the digestion of the cellulose substances in the diet.
Gastrointestinal CMV is an erosive or ulcerative disease, which can occur at any location in the gastrointestinal tract from mouth to rectum, colon being the most common [2].
It can occur in any part of the body but in the gastrointestinal tract, esophagus is the commonest location.
Gastrointestinal tract malignant melanomas are rare form of neoplasm that may be either primary or metastatic.
Menopausal hormone therapy is associated with an increased risk of major gastrointestinal bleeding, particularly in the lower gastrointestinal tract, that is associated with duration of use, a study has found.
Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLGT; osteoclast-rich tumor of the gastrointestinal tract with features resembling clear cell sarcoma [CCS] of soft parts) is a rare malignant neoplasm that arises within the wall of the small bowel, stomach, or large bowel, and predominantly occurs in young adults.
Blue rubber bleb nevus syndrome (BRBNS) is a rare syndrome characterized by multiple vascular malformations of varying size and appearance that present predominantly on the skin and within the gastrointestinal tract and less often in other internal organs.
Gross pathologic classifications were designated as follows: birds presenting with ovarian tumors only (class 1), those presenting with oviductal and ovarian tumors (class 2), those with ovarian and oviductal tumors that metastasized to the gastrointestinal tract (class 3), those with ovarian and oviductal tumors that metastasized to the gastrointestinal tract and other distant organs (class 4), those with oviductal tumors only (class 5), those with oviductal tumors that metastasized to other organs with no ovarian involvement (class 6), and those with ovarian tumors that metastasized to other organs with no oviductal involvement (class 7), including birds with gastrointestinal tumors and no reproductive involvement (gastrointestinal only) and those with no tumors (normal).
Contents of stomachs and intestines (gastrointestinal tract) were removed by flushing material from the gastrointestinal tract through the vent by using a special apparatus inserted into the esophagus (Wasowicz and Valdez, 1994) that was an effective method to avoid sacrifice of fish.
The experts said: "Microbial colonisation of the infant gut gastrointestinal tract is important for the postnatal development of the immune system.