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
No Longer Human One modern analyst has proposed Dazai was suffering from complex post-traumatic stress disorder when he wrote the book. "No Longer Human" is told in the form of notebooks left by one , a troubled man incapable of revealing his true self to others, and who is instead forced to uphold a facade of hollow jocularity. The novel is composed of three chapters, or "memoranda", which chronicle the life of Ōba from early childhood to late twenties. The story is bookended with two other, shorter, chapters from the point of view of a neutral observer, who sees three photos of Ōba