| S-T | [segment] in electrocardiography, the portion of the segment between the end of the S wave and the b... |
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| LS | lateral suspensor; left sacrum; left septum; left side; legally separated; leiomyosarcoma; length of... |
| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
| HCG, hCG | Human Chorionic Gonadotropin; 사람융모성성선자극호르몬 1. Placental Glycoprotein Hormone &nbs... |
| LCL | Levinthal-Coles-Lillie [body]; lower confidence limit; lower control limit; lymphoblastoid cell line... |
| oblique section | A diagonal cross section attained by slicing, actually or through imaging techniques, the body or any part of the body or anatomic structure, in any plane which does not parallel the longitudinal axis or intersect it at a right angle, i.e., which is neither longitudinal (vertical) nor transverse (horizontal). Synonym: diagonal section. (05 Mar 2000) |
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| thin section | A section of tissue for electron microscopic examination; the specimen is fixed, typically in glutaraldehyde and/or in osmium tetroxide, embedded in a plastic resin, and sectioned at less than 0.1 um in thickness with a glass or diamond knife in an ultramicrotome. (05 Mar 2000) |
| transverse section | A cross section obtained by slicing, actually or through imaging techniques, the body or any part of the body structure, in a horizontal plane, i.e., a plane which intersects the longitudinal axis at a right angle. Since actual sectioning in the transverse plane results in an inferior and a superior portion, an anatomical transverse section may be a two-dimensional view of the cut surface on the inferior aspect of the superior portion, or of the superior aspect of the inferior portion. By convention, in medical imaging transverse sections demonstrate the former unless otherwise stated. Synonym: axial section. (05 Mar 2000) |
| frontal section | A cross section attained by slicing, actually or through imaging techniques, the body or any part of the body or any anatomic structure in the coronal or frontal plane, i.e., in a vertical plane perpendicular to the median or sagittal plane. Since actual sectioning in the coronal plane results in an anterior and a posterior portion, an anatomical coronal section may be a two-dimensional view of the cut surface of the posterior aspect of the anterior portion, or of the anterior aspect of the posterior portion. Synonym: frontal section. (05 Mar 2000) |
| frozen section | <technique> Part of biopsy material frozen immediately to enable pathological analysis in a few minutes on a microscope slide. (16 Dec 1997) |
| longitudinal section | A section that is cut along the long axis of a structure. The opposite is a cross-section. (12 Dec 1998) |
| acute lower GI haemorrhage | <gastroenterology> Typical presentation: Sudden onset of brisk rectal bleeding without blood in gastric aspirate Diagnostic considerations: diverticulosis, angiodysplasia, ischemic colitis, inflammatory bowel disease (rarely), polyps are usually present, carcinoma causing a chronic bleed, haemorrhoids. (12 Dec 1998) |
| anterior surface of lower limb | The anterior surface of the inferior limb. Synonym: facies anterior membri inferioris. (05 Mar 2000) |
| arterial arch of lower eyelid | Formed by the medial palpebral artery which communicates with a branch of the lacrimal artery along the tarsal margin. Synonym: arcus palpebralis inferior. (05 Mar 2000) |
| bones of lower limb | These include the inferior limb girdle (hip bone) and the skeleton of the free inferior limb (femur, tibia, fibula, patella, tarsus, metatarsus, and bones of the toes). Synonym: ossa membri inferioris, bones of inferior limb. (05 Mar 2000) |
| regions of lower limb | The topographic divisions of the lower limb: gluteal, thigh (or femoral), knee, leg (or crural), ankle, and foot. Synonym: regiones membri inferioris, regions of inferior limb. (05 Mar 2000) |
| mean lower low water | <marine biology> The average height of the lower low waters over a 19-year period. For shorter periods of observations, corrections are applied to eliminate known variations and reduce the result to the equivalent of a mean 19-year value. (09 Oct 1997) |
| posterior surface of lower limb | The posterior surface of the inferior limb. Synonym: facies posterior membri inferioris. (05 Mar 2000) |
| denture, complete, lower | A complete denture replacing all the natural mandibular teeth and associated structures. It is completely supported by the oral tissue and underlying mandibular bone. (12 Dec 1998) |
| depressor muscle of lower lip | <anatomy, muscle> Origin, anterior portion of lower border of mandible; insertion, orbicularis oris musculus and skin of lower lip; action, depresses lower lip; nerve supply, facial. Synonym: musculus depressor labii inferioris, depressor muscle of lower lip, musculus quadratus labii inferioris, musculus quadratus menti. (05 Mar 2000) |