- arcade
- An anatomic structure or structures (especially a blood vessel) taking the form of a series of arches. [L. arcus, arc, bow]- anomalous mitral a. short chordae tendineae extending from both papillary muscles to the central portion of the anterior leaflet of the mitral valve and resulting in stenosis or incompetence of the valve.- arterial arcades a series of anastomosing arterial arches, as the intestinal arterial arcades between the branches of the jejunal and ileal arteries in the mesentery and the pancreaticoduodenal arteries on the head of the pancreas.- intestinal arterial 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 ALSO: arterial arches of ileum, under arch, arterial arches of jejunum, under arch, marginal artery of colon. SYN: intermesenteric arterial anastomoses, Riolan arc (1), Riolan arcades.- mandibular dental a. [TA] the teeth supported by the alveolar part of the mandible, whether the 10 deciduous teeth or the 16 permanent teeth. SYN: arcus dentalis inferior, lower dental a., inferior dental arch, mandibular dentition.- maxillary dental a. [TA] the teeth supported by the alveolar process of the two maxillae, whether the 10 deciduous teeth or the 16 permanent teeth. SYN: arcus dentalis maxillaris [TA], arcus dentalis superior, upper dental a., maxillary dentition, superior dental arch.- pancreaticoduodenal arterial arcades anastomoses between the anterior and posterior pancreaticoduodenal arteries (from the gastroduodenal artery) and the anterior and posterior inferior pancreaticoduodenal arteries (from the superior mesenteric artery) on the anterior and posterior aspects of the head of the pancreas and the duodenum, supplying both structures.
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ar·cade är-'kād n1) an anatomical structure comprising a series of arches2) DENTAL ARCH* * *
ar·cade (ahr-kādґ) an anatomical structure composed of a series of arches.
Medical dictionary. 2011.