| regio umbilicalis | The central region of the abdomen about the umbilicus. Synonym: regio umbilicalis. (05 Mar 2000) |
|---|---|
| regio urogenitalis | The anterior portion of the perineal region containing the openings of the urethra and vagina in the female and the urethra and root structures of the penis in the male. Synonym: regio urogenitalis, urogenital region. (05 Mar 2000) |
| regio vertebralis | The central region of the back, corresponding to the underlying vertebral column. Synonym: regio vertebralis. (05 Mar 2000) |
| regio zygomatica | The region of the face outlined by the zygomatic bone; the prominence above the cheek. Synonym: regio zygomatica. (05 Mar 2000) |
| region | <anatomy> A plane area with more or less definite boundaries. (18 Nov 1997) |
| region of interest | In computed tomography or other computerised imaging, an interactively selected portion of the image, whose individual or average pixel values can be displayed numerically. (05 Mar 2000) |
| region of olfactory mucosa | The specialised olfactory receptive area that includes the upper one-third of the nasal septum and the lateral wall above the superior concha; it is lined with olfactory mucosa. Synonym: regio olfactoria tunicae mucosae nasi, olfactory region of tunica mucosa of nose, Schultze's membrane. (05 Mar 2000) |
| region of respiratory mucosa | The area commencing at the vestibule of the nose lined with respiratory mucosa; with the exception of the olfactory mucusa, it includes the entire nasal cavity. Synonym: regio respiratoria tunicae mucosae nasi, respiratory region of tunica mucosa of nose. (05 Mar 2000) |
| region, regulatory | See: Regulatory sequence. (12 Dec 1998) |
| regional | <anatomy> Pertaining to, limited to or affecting a certain region or regions. (18 Nov 1997) |
| regional anaesthesia | Use of local anaesthetic solution(s) to produce circumscribed areas of loss of sensation; a generic term including conduction, nerve block, spinal, epidural, field block, infiltration, and topical anaesthesia. Synonym: conduction analgesia. (05 Mar 2000) |
| regional anatomy | An approach to anatomical study based on regions, parts, or divisions of the body (e.g., the foot or the inguinal region), emphasizing the relationships of various systemic structures (e.g., muscles, nerves, and arteries) within that area; distinguished from systemic anatomy. Synonym: topographic anatomy, topology. (05 Mar 2000) |
| regional eneteritis | Crohn's disease, a chronic inflammatory disease of the intestine primarily in the small and large intestines but which can occur anywhere in the digestive system between the mouth and the anus. Named after burrill crohn who described the disease in 1932. The disease usually affects persons in their teens or early twenties. It tends to be chronic, recurrent with periods of remission and exacerbation. In the early stages, it causes small scattered shallow crater-like areas (erosions) called apthous ulcers in the inner surface of the bowel. With time, deeper and larger ulcers develop, causing scarring and stiffness of the bowel and the bowel becomes increasingly narrowed, leading to obstruction. Deep ulcers can puncture holes in the bowel wall, leading to infection in the abdominal cavity (peritonitis) and in adjacent organs.when only the large intestine (colon) is involved, the condition is called crohn's colitis. When only the small intestine is involved, the condition is called crohn's enteritis. When only the end of the small intestine (the terminal ileum) is involved, it is termed terminal ileitis. When both the small intestine and the large intestine are involved, the condition is called crohn's enterocolitis (or ileocolitis). Abdominal pain, diarrhoea, vomiting, fever, and weight loss can be symptoms. Crohn's disease can be associated with reddish tender skin nodules, and inflammation of the joints, spine, eyes, and liver. Diagnosis is by barium enema, barium X-ray of the small bowel, and colonoscopy. Treatment includes medications for inflammation, immune suppression, antibiotics, or surgery. (the disease is also called granulomatous enteritis). (12 Dec 1998) |
| regional enteritis | A subacute chronic enteritis, of unknown cause, involving the terminal ileum and less frequently other parts of the gastrointestinal tract; characterised by patchy deep ulcers that may cause fistulas, and narrowing and thickening of the bowel by fibrosis and lymphocytic infiltration, with noncaseating tuberculoid granulomas that also may be found in regional lymph nodes; symptoms include fever, diarrhoea, cramping abdominal pain, and weight loss. Synonym: chronic cicatrizing enteritis, Crohn's disease, distal ileitis, regional ileitis, terminal ileitis, granulomatous enteritis. (05 Mar 2000) |
| regional enterocolitis | The changes of regional enteritis involving both the colon and the small intestine. (05 Mar 2000) |