| MIS | management information system; medical information service; meiosis-inducing substance; minimally in... |
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| MIS | Meiosis-Inducing Substance |
| SP | Substance P |
| SPS | Sleep Promoting Substance |
| SRS-A | Slow Reacting Substance of Anaphylaxis |
| 125I-BHSP | 125I-Bolton Hunter substance P |
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| TBARS | 2-thiobarbituric acid-reacting substance |
| AS | Aggregation substance |
| CDS | Clonidine displacing substance |
| DLS | Digitalis-like substance |
| spongy substance | Bone in which the spicules or trabeculae form a three-dimensional latticework (cancellus) with the interstices filled with embryonal connective tissue or bone marrow. Synonym: substantia trabecularis, cancellous bone, spongy bone, spongy substance, trabecular bone. (05 Mar 2000) |
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| spongy | 1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones. 2. Wet; drenched; soaked and soft, like sponge; rainy. "Spongy April." 3. Having the quality of imbibing fluids, like a sponge. <chemistry> Spongy lead, sponge lead. See Sponge. Spongy platinum. See Platinum. Source: Websters Dictionary (01 Mar 1998) |
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| spongy body of penis | The median column of erectile tissue located between and ventral to the two corpora cavernosa penis; posteriorly it expands into the bulbus penis and anteriorly it terminates as the enlarged glans penis; it is traversed by the urethra. Synonym: corpus cavernosum urethrae, spongy body of penis. Corpus spongiosum urethrae muliebris, the submucous coat of the female urethra, containing a venous network that insinuates itself between the muscular layers, giving to them an erectile nature. (05 Mar 2000) |
| spongy bone | A turbinated bone. (05 Mar 2000) |
| spongy degeneration | <radiology> (Canavan disease) dysmyelinating disease, autosomal recessive, onset at 2 - 9 months, megalencephaly, (Alexander disease only other degenerative neurological disease in infants with big head!), blindness with or without deafness, hypotonia may lead to spasticity, Diagnosis: brain biopsy, centrum semiovale most severely affected (12 Dec 1998) |
| spongy degeneration of infancy | Autosomal recessive degenerative disease of infancy; mostly in Jewish infants; onset typically within first 3-4 months of birth, consisting of blindness, psychomotor regression, enlarged head, optic atrophy, hypotonia, spasticity, increased N-acetylaspartic acid urinary excretion. MRI shows enlarged brain, decreased attenuation of cerebral and cerebellar white matter, and normal ventricles. Pathologically, there is increased brain volume and weight, and spongy degeneration in the subcortical white matter. See: leukodystrophy. Synonym: Canavan's sclerosis, Canavan-van Bogaert-Bertrand disease, spongy degeneration of infancy. (05 Mar 2000) |
| spongy parenchyma | Tissue usually found in the lower part of the leaf mesophyll. Consists of irregularly shaped, photosynthetic parenchyma cells, separated by large air spaces. (18 Nov 1997) |
| spongy part of the male urethra | The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. (05 Mar 2000) |
| spongy spot | An area in the external acoustic meatus where a number of minute blood vessels enter from the mastoid bone. Synonym: spongy spot, zona vasculosa. (05 Mar 2000) |
| spongy urethra | The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. (05 Mar 2000) |
| alpha substance | A filamentous plasmatic material, beaded with granules, demonstrable by means of vital staining in the immature red blood cells. Synonym: alpha substance, filar mass, filar substance, substantia reticularis, substantia reticulofilamentosa. Synonym: reticular formation. (05 Mar 2000) |
| anterior perforated substance | A region at the base of the brain through which numerous small branches of the anterior and middle cerebral arteries (lenticulostriate arteries) enter the depth of the cerebral hemisphere; it is bordered medially by the optic chasm and anterior half of the optic tract, rostrally and laterally by the lateral olfactory stria; its anteromedial part corresponds to the olfactory tubercle. Synonym: substantia perforata anterior, locus perforatus anticus, olfactory area. (05 Mar 2000) |
| autacoid substance | A substance formed metabolically by one set of cells, which alters the function of other cells. (This term is sometimes used in place of the term hormone.) (05 Mar 2000) |
| bacteriotropic substance | Opsonin or other substance that alters bacterial cells in such a manner that they are more susceptible to phagocytic action. (05 Mar 2000) |
| basophilic substance | The material consisting of granular endoplasmic reticulum and ribosomes that occurs in nerve cell bodies and dendrites. Synonym: basophil substance, basophilic substance, chromophil substance, Nissl bodies, Nissl granules, substantia basophilia, tigroid bodies, tigroid substance. (05 Mar 2000) |
| basophil substance | The material consisting of granular endoplasmic reticulum and ribosomes that occurs in nerve cell bodies and dendrites. Synonym: basophil substance, basophilic substance, chromophil substance, Nissl bodies, Nissl granules, substantia basophilia, tigroid bodies, tigroid substance. (05 Mar 2000) |
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