| small nuclear RNA | <molecular biology> A nucleic acid found in all living cells. Plays a role in transferring information from DNA to the protein-forming system of the cell. (16 Dec 1997) |
|---|---|
| small pancreas | A portion of the head of the pancreas that hooks around posterior to the superior mesenteric vessels, sometimes into the "nutcracker" formed by the superior mesenteric artery and abdominal aorta. Synonym: processus uncinatus pancreatis, lesser pancreas, pancreas minus, small pancreas, uncinate pancreas, unciform pancreas, Willis' pancreas, Winslow's pancreas. (05 Mar 2000) |
| small pelvis | The cavity of the pelvis below the brim or superior aperture. Synonym: pelvis minor, pelvis vera, small pelvis, true pelvis. (05 Mar 2000) |
| small plaque parapsoriasis | See: parapsoriasis en plaque. Synonym: small plaque parapsoriasis. (05 Mar 2000) |
| small pudendal lip | One of two narrow longitudinal folds of mucous membrane enclosed in the pudendal cleft within the labia majora; posteriorly, they gradually merge into the labia majora and join to form the frenulum labiorum pudendi (fourchette); anteriorly, each labium divides into two portions which unite with those of the opposite side in front of the glans clitoridis to form the prepuce. Synonym: labium minus pudendi, small pudendal lip. (05 Mar 2000) |
| small saphenous vein | <anatomy, vein> Arises on the lateral side of the foot from a union of the dorsal vein of the little toe with the dorsal venous arch, ascends behind the lateral malleolus, along the lateral border of the calcanean tendon and then through the middle of the calf to the lower portion of the popliteal space where it empties into the popliteal vein. Synonym: vena saphena parva, short saphenous vein. (05 Mar 2000) |
| small scale energy loan program | (SELP) A low-cost loan and technical assistance program administered by the Oregon Department of Energy. (05 Dec 1998) |
| small sciatic nerve | <anatomy, nerve> Arises from the first three sacral nerves, supplies the skin of the posterior surface of the thigh and of the popliteal region (S1 and S2 component); it gives off a perineal branch (S3 component) that passes to the lateral aspect of the scrotum or labia majora. Synonym: nervus cutaneus femoris posterior, posterior cutaneous nerve of thigh, small sciatic nerve. (05 Mar 2000) |
| small trochanter | A pyramidal process projecting from the medial and proximal part of the shaft of the femur at the line of junction of the shaft and the neck; it receives the insertion of the psoas major and iliacus (iliopsoas) muscles. Synonym: trochanter minor, small trochanter, trochantin. (05 Mar 2000) |
| small uterus | <radiology> Hypoplasia, nulliparity, di-ethyl stilbesterol (DES), synechiae (12 Dec 1998) |
| small vein | <anatomy, vein> A vein in which the three tunics are poorly defined and thin; longitudinal elastic networks occur and the smooth muscle of the media, which is circularly arranged, may be incomplete or in one or two layers. (05 Mar 2000) |
| diffuse small bowel disease | <radiology> SWELL GAMES, S sprue, dilatation, dilution, moulage, reversal of jejunal and ileal patterns, W Whipple disease, coarse nodular and irregular mucosa, E oedema, L lymphangiectasis, nodular, thickened folds, L lymphoma, nodular, thickened folds, G giardiasis, oedema and spasm of proximal small bowel, A amyloid, symmetric fold thickening, M mastocytosis, look for sclerotic bones, E eosinophilic gastroenteritis, thickened, nodular folds and spasm, S stasis syndromes see: small bowel disease (12 Dec 1998) |
| diffuse small cleaved cell lymphoma | <tumour> A diffuse poorly differentiated lymphocytic lymphoma; follicular centre cell lymphoma that lacks a follicular pattern; malignancy is of intermediate grade. (05 Mar 2000) |
| immunoproliferative small intestinal disease | A spectrum of conditions ranging from a benign plasma cell hyperplasia to a highly malignant lymphoma of the small intestine. (12 Dec 1998) |
| infant, small for gestational age | An infant having a birth weight lower than expected for its gestational age. (12 Dec 1998) |