| glomerular crescent | Proliferated epithelial cells partly encircling a renal glomerulus; it occurs in glomerulonephritis. (05 Mar 2000) |
|---|---|
| glomerular cysts | Cyst's formed by dilatation of Bowman's capsules, found in rare cases of congenital polycystic kidneys. (05 Mar 2000) |
| glomerular filtration rate | <nephrology> Measure of the kidneys' ability to filter and remove waste products. (09 Oct 1997) |
| glomerular layer of olfactory bulb | A layer composed of spherical bodies, called glomeruli, formed by the synapses of mitral cells with the olfactory nerve fibres derived from the cells of the olfactory epithelium. (05 Mar 2000) |
| glomerular mesangium | The thin membrane which helps to support the capillary loops in a renal glomerulus. (12 Dec 1998) |
| glomerular nephritis | <nephrology> A variety of nephritis characterised by inflammation of the capillary loops in the glomeruli of the kidney. It occurs in acute, subacute and chronic forms and may be secondary to haemolytic streptococcal infection. Evidence also supports possible immune or autoimmune mechanisms. (18 Nov 1997) |
| glomerular sclerosis | Hyaline deposits or scarring within the renal glomeruli, a degenerative process occurring in association with renal arteriosclerosis or diabetes. Synonym: glomerular sclerosis. Origin: Glomerulus + G. Sklerosis, hardness (05 Mar 2000) |
| abrasive media | <microscopy> Extremely hard materials (Diamond, SiC, Al2O3 etc.), usually in a very fine particulate form (less than 15 micrometres), used in the initial stages of specimen preparation to grind and polish samples to the desired thickness or finish. (05 Aug 1998) |
| aerotitis media | See Aerotitis. (12 Dec 1998) |
| arteria cerebri media | <anatomy, artery> One of the two large terminal branches (with anterior cerebral artery) of the internal carotid artery; it passes laterally around the pole of the temporal lobe, then posteriorly in the depth of the lateral cerebral fissure; for descriptive purposes it is divided into three parts: 1) the sphenoidal part (M1 segment of clinical terminology), supplying perforating branches to the internal capsule, thalamus, and striate body; 2) the insular part, supplying branches to the insula and adjacent cortical areas; and 3) the terminal part or cortical part, supplying a large part of the central cortical convexity (the latter two collectively forming M2 segment). Synonym: arteria cerebri media. (05 Mar 2000) |
| arteria colica media | <anatomy, artery> Origin, superior mesenteric; distribution, transverse colon; anastomoses, right and left colic. Synonym: arteria colica media. (05 Mar 2000) |
| arteria collateralis media | <anatomy, artery> The posterior terminal branch of the profunda brachii, anastomosing with the arteries which form the articular network of the elbow. Synonym: arteria collateralis media. (05 Mar 2000) |
| arteria genus media | <anatomy, artery> Origin, popliteal; distribution, synovial membrane and cruciate ligaments of knee joint. Synonym: arteria genus media, arteria articularis azygos. (05 Mar 2000) |
| arteria meningea media | Origin, maxillary; branches, petrosal, superior tympanic, frontal and parietal; distribution, to parts mentioned and through terminal branches to anterior and middle cranial fossae; anastomoses, meningeal branches of occipital, ascending pharyngeal, ophthalmic and lacrimal, stylomastoid, accessory meningeal branch of maxillary, and deep temporal. Synonym: arteria meningea media. (05 Mar 2000) |
| arteria rectalis media | <anatomy, artery> Origin, internal iliac; distribution, middle portion of rectum; anastomoses, inferior rectal and superior rectal. Because the latter is a tributary of the portal system, this is a portosystemic or portocaval anastomosis. Synonym: arteria rectalis media, middle haemorrhoidal artery. (05 Mar 2000) |