| V region | <molecular biology> Those regions in the amino acid sequence of both the heavy and the light chains of immunoglobulins where there is considerable sequence variability from one immunoglobulin to other of the same class, in contrast to constant sequence (C) regions. The V regions are associated with the antigen binding areas. They contain hypervariable regions of particularly high sequence diversity. (18 Nov 1997) |
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| mental region | The region of the chin. Synonym: regio mentalis. (05 Mar 2000) |
| pericentriolar region | <cell biology> Rather amorphous region of electron dense material surrounding the centriole in animal cells: the major microtubule organising centre of the cell. (18 Nov 1997) |
| perineal region | The regio at the lower end of the trunk, anterior to the sacral region and posterior to the pubic region between the thighs; it is divided into the anal triangle posteriorly and the urogenital triangle anteriorly. Synonym: regio perinealis. (05 Mar 2000) |
| great lakes region | The geographic area of the great lakes in general and when the specific state or states are not indicated. It usually includes illinois, indiana, michigan, minnesota, new york, ohio, pennsylvania, and wisconsin. (12 Dec 1998) |
| ringworm of genitocrural region | Tinea cruris is a fungal infection of the perineum, better known as jock itch. This condition is often treated with clotrimazole or miconazole cream. Good general hygiene is vital in the prevention of tinea cruris. Keep the groin area clean and dry and avoid chafing. Launder athletic supporters frequently. Use an antifungal or drying powder after showering. (27 Sep 1997) |
| chromosomal region | That part of a chromosome defined either by anatomical details, notably banding, or by its linkages (linkage group). (05 Mar 2000) |
| mid-atlantic region | A geographical area of the united states comprising the district of columbia, delaware, maryland, new jersey, new york, and pennsylvania. (12 Dec 1998) |
| pineal region tumours | Type of brain tumours. (12 Dec 1998) |
| Wernicke's region | The region of the cerebral cortex thought to be essential for understanding and formulating coherent, propositional speech; it encompasses a large region of the parietal and temporal lobes near the lateral sulcus of the left cerebral hemisphere; corresponding approximately to Brodmann's areas 40, 39, and 22. Synonym: sensory speech centre, Wernicke's area, Wernicke's field, Wernicke's region, Wernicke's zone. (05 Mar 2000) |
| constant region | The stem and forking part of the Y-shaped antibody protein, consisting of amino acid chains, that is exactly the same in all antibody molecules within the same individual. (The ends of the Y-shaped molecule will vary widely between different antibodies). (09 Oct 1997) |
| popliteal region | The diamond-shaped space posterior to the knee joint bounded superficially by the diverging biceps femoris and semimembranosus muscles above and inferiorly by the two heads of the gastrocnemius muscle; deeply, the fossa is bound superiorly by the diverging supracondylar lines of the femur and the soleal line of the tibia inferiorly. Contents: tibial nerve, popliteal artery, vein, fat. Synonym: fossa poplitea, poples, ham, popliteal region, popliteal space, popliteus. (05 Mar 2000) |
| C region | <immunology> The parts of the heavy or light chains of immunoglobulin molecules that are of constant sequence, in contrast to variable or V regions. The constancy of sequence is relative because there are several constant region genes and alleles thereof (see allotypes), but within one animal homozygous at the light and heavy chain constant region genes all immunoglobulin molecules of any one class have constant sequences in their C regions. The constant region sequences for the various different types of immunoglobulin for example IgG, IgA, etc. Will vary. (18 Nov 1997) |
| preoptic region | The most anterior part of the hypothalamus surrounding the anterior or preoptic part of the third ventricle and including the lamina terminalis; containing the lateral and medial preoptic nucleus continuous caudally with, respectively, the lateral and anterior hypothalamic nucleus; rostrally the preoptic region is continuous with the precommissural septum, laterally with the innominate substance. Synonym: preoptic area. (05 Mar 2000) |
| presternal region | The part of the chest over the sternum. Synonym: regio presternalis. (05 Mar 2000) |