41. Catechin is absorbed into intestinal cells and metabolized extensively because no native catechin can be detected in plasma from the mesenteric vein. 42. Additionally, the sigmoid colon and rectum form a watershed zone with blood supply from inferior mesenteric , pudendal and iliac circulations. 43. A 1-in-3 mortality rate for Superior Mesenteric Artery syndrome has been quoted by a small number of sources. 44. They found IgA producing B cells in the Peyer s patches, intestinal lymphoid tissues and follicles, and mesenteric lymph nodes. 45. The lower margin of the pancreas separates the posterior from the inferior surface; the superior mesenteric vessels emerge under its right extremity. 46. The body and neck of the pancreas drain into the splenic vein; the head drains into the superior mesenteric and portal veins. 47. The most common cause is infection with " Strongylus vulgaris " larvae, which primarily develop within the cranial mesenteric artery. 48. The eponymous " anastomosis of Riolan " is named after him, which is the mesenteric arterial connection between the inferior mesenteric arteries. 49. The eponymous " anastomosis of Riolan " is named after him, which is the mesenteric arterial connection between the inferior mesenteric arteries. 50. This is especially used for slow bleeding ( 0.5 ml / min ), mesenteric angiogram ?embolization is the gold standard.