Human digestive system the superior mesenteric artery, which supplies the regions of the digestive tract derived from the midgut, which includes the distal 2/3 of the duodenum, jejunum, ileum, cecum, appendix, ascending colon, and the proximal 2/3 of the transverse colon. The final branch which is important for the digestive system is the inferior mesenteric artery, which supplies the regions of the digestive tract derived from the hindgut, which includes the distal 1/3 of the transverse colon, descending colon, sigmoid colon, rectum, and the anus above the pectinate line. The enteric nervous system consists of some one hundred million neurons that are embedded
Strangers No Longer and Mexico, is also cited as background (§13). "Strangers No Longer" invokes the human reality of migration, and its authors cite their concern at some of the consequences of migration—the vulnerable situation into which migrants are placed, the separation of families, and the challenges presented to social service providers (§4) The section of "Strangers No Longer" dealing with migration in light of scripture brings out the material from both the Old and New Testaments that the bishops see as relevant to the phenomenon of migration today. From the Old Testament, the bishops cite the story of Abraham and Sarah's hospitality