RT Book, Section A1 Russell, Tara A. A1 Eilber, Fritz C. A2 Zinner, Michael J. A2 Ashley, Stanley W. A2 Hines, O. Joe SR Print(0) ID 1160038925 T1 Lesions of the Omentum, Mesentery, and Retroperitoneum T2 Maingot's Abdominal Operations, 13e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071843072 LK accesssurgery.mhmedical.com/content.aspx?aid=1160038925 RD 2024/04/25 AB The entire gastrointestinal tract is derived from a common dorsal mesentery. During development, as the mesentery fuses with the retroperitoneum, the remaining segments become the small bowel mesentery, transverse mesocolon, and sigmoid mesocolon. These mesenteries serve as the primary pathways to and from the bowel for arterial, venous, lymphatic, and neural structures.