1.the stomach and upper half of the duodenum(major papilla of duodenum)are derived from the foregut and supplied by the celiac trunk. 2.The distal half of the duodenum,the jejunum and ileum,cecum and appendix, ascending colon,and two thirds of the transverse colon are derived from the midgut and supplied by the superior mesenteric artery. 3.The distal third of the transverse colon,the descending colon,sigmoid colon, rectum,and the upper part of the anal canal are derived from the hindgut and supplied by the inferior mesenteric artery. the developmental and vascular junctions are at (1)the middle of the duodenum,where the bile duct ends, (2)the left part of the transverse colon.1. the stomach and upper half of the duodenum(major papilla of duodenum) are derived from the foregut and supplied by the celiac trunk. 2. The distal half of the duodenum, the jejunum and ileum, cecum and appendix, ascending colon, and two thirds of the transverse colon are derived from the midgut and supplied by the superior mesenteric artery. 3.The distal third of the transverse colon, the descending colon, sigmoid colon, rectum, and the upper part of the anal canal are derived from the hindgut and supplied by the inferior mesenteric artery. the developmental and vascular junctions are at (1) the middle of the duodenum, where the bile duct ends, (2) the left part of the transverse colon