| gliosarcoma | A glioma consisting of immature, undifferentiated, pleomorphic, spindle-shaped cells with relatively large, hyperchromatic, frequently bizarre nuclei and poorly formed fibrillary processes. It is sometimes used as a term for a malignant neoplasm derived from connective tissue (e.g., that associated with blood vessels in the brain) in which there are proliferating glial cells. (12 Dec 1998) |
|---|---|
| gliosis | The production of a dense fibrous network of neuroglia; includes astrocytosis, which is a proliferation of astrocytes in the area of a degenerative lesion. (12 Dec 1998) |
| gliosis uteri | Foetal neural tissue persisting or recurring locally as a benign condition in the endometrium or cervix; possibly derived from a homograft of foetal glial stroma. (05 Mar 2000) |
| gliosome | <cell biology> A small granule found in the cytoplasm of glial cells. Origin: Gr. Soma = body (17 Dec 1997) |
| gliotoxin | <chemical> A toxic substance which acts mainly against certain viruses by preventing replication of viral DNA. It also has harmful effects on bacteria and fungi. It is produced by certain fungi, including Trichoderma viride. (17 Dec 1997) |
| glipizide | <drug> An oral hypoglycemic agent (a prescription drug that people take to lower the level of glucose in the blood). The drug is useful for patients whose pancreas still produces some insulin and acts by stimulating the pancreas to release more insulin. (17 Dec 1997) |
| glires | <zoology> An order of mammals; the Rodentia. Gli"rine. Origin: L, dormice. Source: Websters Dictionary (01 Mar 1998) |
| glissette | <mathematics> The locus described by any point attached to a curve that slips continuously on another fixed curve, the movable curve having no rotation at any instant. Origin: F, fr. Glisser to slip. Source: Websters Dictionary (01 Mar 1998) |
| Glisson | Francis, English physician, anatomist, physiologist and pathologist, 1597-1677. See: Glisson's capsule, Glisson's cirrhosis, Glisson's sphincter. (05 Mar 2000) |
| Glisson's capsule | A layer of connective tissue ensheathing the hepatic artery, portal vein, and bile ducts as these ramify within the liver. Synonym: capsula fibrosa perivascularis, perivascular fibrous capsule. Connective tissue capsule surrounding the outer surface of the liver, but continuous with septae of some animals which divide parenchyme into lobule, and with the perivascular fibrous capsule at the porta hepatis. Synonym: tunica fibrosa hepatis, Glisson's capsule. (05 Mar 2000) |
| Glisson's cirrhosis | Chronic perihepatitis with thickening and subsequent contraction, resulting in atrophy and deformity of the liver. Synonym: capsular cirrhosis of liver. (05 Mar 2000) |
| Glisson's sphincter | The smooth muscle sphincter of the hepatopancreatic ampulla within the duodenal papilla. Synonym: musculus sphincter ampullae hepatopancreaticae, Glisson's sphincter, hepatopancreatic sphincter, Oddi's sphincter. (05 Mar 2000) |
| glissonitis | Inflammation of Glisson's capsule, or the connective tissue surrounding the portal vein and the hepatic artery and bile ducts. (05 Mar 2000) |
| glitter cells | Polymorphonuclear leukocytes that stain pale blue with gentian violet and contain cytoplasmic granules that exhibit brownian movement; observed in urine sediment and characteristic of pyelonephritis. (05 Mar 2000) |