| ribonucleoproteins, small, u5 | A nuclear RNA-protein complex that plays a role in RNA processing. In the nucleoplasm, the u5 snrnp along with u4-u6 snrnp preassemble into a single 25s particle that binds to the u1 and u2 snrnps and the substrate to form mature spliceosomes. (12 Dec 1998) |
|---|---|
| RNA, small nuclear | Short chains of RNA found in the nucleus. Their function is to remove the introns (nontranslated intervening sequences) from mRNA precursors, thereby bringing the two exons (coding segments) together into correct juxtaposition for enzymatic splicing at the correct point. The resulting mRNA is now ready to leave the nucleus. (12 Dec 1998) |
| mucosa of small intestine | The mucous coat of the small intestine. Synonym: tunica mucosa intestini tenuis. (05 Mar 2000) |
| muscular coat of small intestine | Muscular layer of the wall of the small intestine. Synonym: tunica muscularis intestini tenuis. (05 Mar 2000) |
| sarcoma, small cell | A sarcoma characterised by the presence of small cells, cells measuring 9-14 micrometers with a faint or indistinct rim of cytoplasm and an oval-to-elongated nucleus with relatively dense chromatin. (12 Dec 1998) |
| serosa of small intestine | Serous coat of the small intestine; the peritoneal covering of the external surface of the small intestine. Synonym: tunica serosa intestini tenuis. (05 Mar 2000) |
| small | 1. Having little size, compared with other things of the same kind; little in quantity or degree; diminutive; not large or extended in dimension; not great; not much; inconsiderable; as, a small man; a small river. "To compare Great things with small." (Milton) 2. Being of slight consequence; feeble in influence or importance; unimportant; trivial; insignificant; as, a small fault; a small business. 3. Envincing little worth or ability; not large-minded; sometimes, in reproach, paltry; mean. "A true delineation of the smallest man is capable of interesting the reatest man." (Carlyle) 4. Not prolonged in duration; not extended in time; short; as, after a small space. 5. Weak; slender; fine; gentle; soft; not loud. "A still, small voice." Great and small,of all ranks or degrees; used especially of persons. "His quests, great and small." . Small arms, muskets, rifles, pistols, etc, in distinction from cannon. Small beer. See Beer. Small coal. Little coals of wood formerly used to light fires. Coal about the size of a hazelnut, separated from the coarser parts by screening. Small craft, various small textile articles, as tapes, braid, tringe, and the like. Origin: OE. Small, AS. Sm$l; akin to D. Smal narrow, OS. & OHG. Smal small, G. Schmal narrow, Dan. & Sw. Smal, Goth. Smals small, Icel. Smali smal cattle, sheep, or goats; cf. Gr. A sheep or goat. Source: Websters Dictionary (01 Mar 1998) |
| small-area analysis | A method of analyzing the variation in utilization of health care in small geographic or demographic areas. It often studies, for example, the usage rates for a given service or procedure in several small areas, documenting the variation among the areas. By comparing high- and low-use areas, the analysis attempts to determine whether there is a pattern to such use and to identify variables that are associated with and contribute to the variation. (12 Dec 1998) |
| small arteries | Unnamed muscular artery's, usually with fewer than six or seven layers of muscle. (05 Mar 2000) |
| small calorie | The quantity of energy required to raise the temperature of 1 g of water 1캜, or from 14.5캜 to 15.5캜 in the case of normal or standard calorie. Synonym: gram calorie. (05 Mar 2000) |
| small canal of chorda tympani | A canal leading from the facial canal to the tympanic cavity through which the chorda tympani nerve enters this cavity. Synonym: canaliculus chordae tympani, iter chordae posterius, small canal of chorda tympani. (05 Mar 2000) |
| small cardiac vein | <anatomy, vein> An inconstant vessel, accompanying the right coronary artery in the coronary sulcus, from the right margin of the right ventricle, and emptying into the coronary sinus or the middle cardiac vein. Synonym: vena cordis parva. (05 Mar 2000) |
| small cell carcinoma | <oncology, tumour> Common malignant neoplasm of bronchus. Cells of the tumour have endocrine like characteristics and may secrete one or more of a wide range of hormones, especially regulatory peptides like bombesin. (18 Nov 1997) |
| small cell lung cancer | A type of lung cancer in which the cells are small and round. Also called oat cell lung cancer. (12 Dec 1998) |
| small cleaved cell | A lymphoid cell of follicular centre cell origin that has an irregularly shaped nucleus with clumped chromatin, absent nucleoli, and one or more clefts in the nuclear membrane. (05 Mar 2000) |