General Abdomen: Mesentery Anatomy & Physiology Mesentery MesenteryDouble Fold of Peritoneum Attaching Intestine to Posterior Abdominal WallContains Blood Vessels (SMA/IMA/Portal System), Nerves and Lymph NodesNumerous Lymphatic VesselsSpecific StructuresRoot – Point Where Mesentery Attaches to the Posterior WallWhite Line of Toldt – Lateral Reflections of Parietal Peritoneum Over the Mesentery of the Ascending/Descending Colon Mesentery of the Small Intestine 1 References https://www.scientificanimations.com/wiki-images (License: CC BY-SA-4.0)