| Riolan's anastomosis | The specific portion of the marginal artery of the colon connecting the middle and left colic arteries. Synonym: Riolan's arc. (05 Mar 2000) |
|---|---|
| Riolan's arc | The series of arterial arches formed in the mesentery by anastomoses between adjacent jejunal and ileal arteries and from which vasa recta arise. The arterial arcades of the ileum are shorter and more complex than those of the jejunum. See: arterial arches of ileum, arterial arches of jejunum. Synonym: intermesenteric arterial anastomosis, Riolan's arc, Riolan's arcades. (05 Mar 2000) |
| Riolan's arcades | The series of arterial arches formed in the mesentery by anastomoses between adjacent jejunal and ileal arteries and from which vasa recta arise. The arterial arcades of the ileum are shorter and more complex than those of the jejunum. See: arterial arches of ileum, arterial arches of jejunum. Synonym: intermesenteric arterial anastomosis, Riolan's arc, Riolan's arcades. (05 Mar 2000) |
| Riolan's bones | Several small sutural bone's sometimes present in the petro-occipital suture. (05 Mar 2000) |
| Riolan's muscle | <anatomy> Marginal fibres of the palpebral part of the orbicularis oculi muscle. Synonym: cremaster muscle. (05 Mar 2000) |
| Riolan, Jean | <person> French anatomist and botanist, 1577-1657. See: Riolan's anastomosis, Riolan's arc, Riolan's arcades, Riolan's bones, Riolan's bouquet, Riolan's muscle. (05 Mar 2000) |
| rioprostil | <chemical> (11 alpha,13e)-1,11,16-trihydroxy-16-methylprost-13-en-9-one. A synthetic methylprostaglandin e1 analog that reduces gastric acid secretion and enhances the gastric mucus-bicarbonate barrier. It is effective in the therapy of gastric ulcers and gives significant protection against nsaid-induced gastric mucosal damage. The drug also prevents cyclosporin a-induced damage to endocrine and exocrine pancreatic secretions. It shows a low order of acute toxicity and there is no evidence of embryotoxicity, fetotoxicity, teratogenicity, or mutagenicity in animal studies. Pharmacological action: anti-ulcer agents. Chemical name: Prost-13-en-9-one, 1,11,16-trihydroxy-16-methyl-, (11alpha,13E)- (12 Dec 1998) |
| riot | 1. To engage in riot; to act in an unrestrained or wanton manner; to indulge in excess of luxury, feasting, or the like; to revel; to run riot; to go to excess. "Now he exact of all, wastes in delight, Riots in pleasure, and neglects the law." (Daniel) "No pulse that riots, and no blood that glows." (Pope) 2. To disturb the peace; to raise an uproar or sedition. See Riot. Origin: OF. Rioter; cf. OD. Ravotten. Source: Websters Dictionary (01 Mar 1998) |
| riot control agents, chemical | Chemical substances which are employed during a riot in order to control or disperse the rioting parties. (12 Dec 1998) |
| riots | A form of violent crowd behaviour which expresses the emotional release of resentments and prejudices, usually relevant to grievances toward the social system. (12 Dec 1998) |
| Hortega, Pio del Rio | <person> Spanish neurohistologist in South America, 1882-1945. See: Hortega cells, Hortega's neuroglia stain. (05 Mar 2000) |
|---|