After this lecture you will be able to:Afterthis lecture you will be able to: Accurately define and label thoracic lymph nodes to conform to the new. IASLC lymph node map. Recognize the differences between the new IASLC lymph node map and. old MDoldMD-ATS lymph node mapATSlymph node map.
The mesentery is a fold of membranous tissue that arises from the posterior wall of the peritoneal cavity and attaches to the intestinal tract.Within it are the arteries and veins that supply the intestine.uring mobilization of the small intestinal mesentery from the posterior abdominal wall, this fold is incised, allowing access to the interface between the small intestinal mesentery and the retroperitoneum.
The mesentery is a reflection of the peritoneum on the bowel surface; it also supports loops of the small bowel and the colon. The mesentery consists of two fused layers, within which lie mesenteric vessels, lymphatic vessels, nerves, and variable amounts of fat.he mesentery is a reflection of the peritoneum on the bowel surface; it also supports loops of the small bowel and the colon. The mesentery consists of two fused layers, within which lie mesenteric vessels, lymphatic vessels, nerves, and variable amounts of fat.