| ¿µ¹® | myelin sheath | ÇÑ±Û | ¸»ÀÌÁý |
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| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |
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| PALS | parietolateral lymphocyte sheath; pediatric advanced life support; prison-acquired lymphoproliferati... |
| HI Method | Hemagglutination Inhibiting Method; Ç÷±¸ ÀÀÁý ¾ïÁ¦¹ý |
| ABC | absolute basophil count; absolute bone conduction; acalculous biliary colic; acid balance control; a... |
| MAG | Myelin Associated Glycoprotein |
| GCTTS | Giant cell tumor of tendon sheath |
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| MPNST | Malignant Peripheral Nerve Sheath Tumour |
| ORS | Outer root sheath |
| FS | fibrous sheath |
| IRS | inner root sheath |
| myelin sheath | <anatomy, neurology> An insulating layer surrounding vertebrate peripheral neurons, that dramatically increases the speed of conduction. It is formed by specialised Schwann cells, that can wrap around neurons up to 50 times. The exposed areas are called nodes of Ranvier: they contain very high densities of sodium channels and action potentials jump from one node to the next, without involving the intermediate axon, a process known as saltatory conduction. (18 Nov 1997) |
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| Weigert, Carl | <person> German pathologist, 1845-1904. See: Weigert's law, Weigert's iodine solution. See entries under stain. (05 Mar 2000) |
| Weigert-Gram stain | <technique> A stain for bacteria in tissues in which sections are stained in alum-haematoxylin, then in eosin, aniline methyl violet, and Lugol's solution. (05 Mar 2000) |
| weigert-meyer rule | <radiology> Applies to duplex collecting systems, upper-pole ureter, obstruction most likely to be hydronephrosis, inserts more inferiorly and medially in bladder, may insert into urethra, vagina, etc., males not incontinent: insertion above ext. Sphincter, associated with ureterocele, lower-pole ureter, reflux most likely to be pyelonephritis see also: drooping lily sign (12 Dec 1998) |
| Weigert's iodine solution | An iodine-potassium iodide mixture used as a reagent to alter crystal and methyl violet so that they are retained by certain bacteria and fungi. (05 Mar 2000) |
| Weigert's iron haematoxylin stain | <technique> A nuclear staining solution containing haematoxylin, ferric chloride, and hydrochloric acid; useful in combination with von Gieson's stain, especially for demonstrating connective tissue elements or Entamoeba histolytica in sections. (05 Mar 2000) |
| Weigert's law | The loss or destruction of a part or element in the organic world is likely to result in compensatory replacement and overproduction of tissue during the process of regeneration or repair (or both), as in the formation of callus when a fractured bone heals. Synonym: overproduction theory. (05 Mar 2000) |
| Weigert's stain | <technique> 1. For actinomyces, a staining method using immersion in a dark red orsellin solution in alcohol, then staining in crystal-violet solution. See: iron haematoxylin. 2. For elastin, a staining solution of fuchsin, resorcin, and ferric chloride; elastic fibres stain blue-black. 3. For fibrin, a staining method using solutions of aniline-crystal violet and iodine-potassium iodide, then decolorizing in aniline oil and xylol; the fibrin is stained dark blue. 4. For myelin, a staining method using ferric chloride and haematoxylin; myelin stains deep blue, degenerated portions a light yellowish colour. 5. For neuroglia, a complicated process in which the final treatment is like that for staining fibrin; neuroglia and nuclei stain blue. 6. For reticulum, a silver impregnation technique in which reticulum appears as black, well-defined fibres without beading and with a relatively clear background. (05 Mar 2000) |
| myelin | <anatomy, neurology, pathology> The material making up the myelin sheath of nerve axons. (18 Nov 1997) |
| myelin-associated glycoprotein | A myelin protein found in the periaxonal membrane of both the central and peripheral nervous systems myelin sheaths. It has a structure that is similar to members of the ig superfamily that participate in cell adhesion. (12 Dec 1998) |
| myelin basic protein | <protein> Major component of the myelin sheath in mammalian CNS. Used as an antigen will induce a allergic encephalitis, possibly a model for some neurodegenerative disorders. (18 Nov 1997) |
| myelin basic protein kinase | <enzyme> Protein from pig brain activates ATP-mg-dependent protein phosphatase; a protein tau kinase; a multisubstrate kinase; in texts written as f subscript a Registry number: EC 2.7.1.- Synonym: protein phosphatase activator fa, glycogen synthase kinase 3, protein kinase f(a), gsk-3, gsk-3alpha, kinase f(a), gsk-3beta, mds1 gene product, p63(samk), src-activated mbp kinase, p63(mapk) (26 Jun 1999) |
| myelin basic proteins | A group of 7 proteins produced from a single gene by alternate splicing found in central and peripheral nervous system myelin. The major basic protein (mbp) has long been of interest because it is the antigen, that, when injected into an animal, elicits a cellular immune response that produces the CNS autoimmune disease called experimental allergic encephalomyelitis (encephalomyelitis, allergic). In the peripheral nervous system, myelin basic protein 18.5 kD is often referred to as the p1 protein. (12 Dec 1998) |
| myelin body | <cell biology> Structure that can form spontaneously when bilayer forming phospholipids (e.g. Egg lecithin) are added to water. They are reminiscent of the concentric layer structure of myelin. (18 Nov 1997) |
| myelin figure | <cell biology> Structure that can form spontaneously when bilayer forming phospholipids (e.g. Egg lecithin) are added to water. They are reminiscent of the concentric layer structure of myelin. (18 Nov 1997) |
| Weigert's myelin sheath method |
a method of demonstrating the myelin sheath of nerve cell processes.
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