mesenterie

The mesentery is a fold of peritoneum that attaches the stomach, small intestine, pancreas, spleen, and other organs to the posterior wall of the abdomen. It serves to support these organs and contains blood vessels, nerves, and lymphatic vessels that supply them. The mesentery is a single, continuous structure, although it is often described as having two parts: the transverse mesocolon, which suspends the transverse colon, and the small intestinal mesentery, which suspends the small intestine.

The mesentery plays a crucial role in the digestive system. It allows for the movement of food through the intestines and helps to maintain the position of the organs within the abdominal cavity. The blood vessels within the mesentery deliver oxygen and nutrients to the organs, and remove waste products. The nerves in the mesentery control the muscular contractions of the intestines that propel food along.

Diseases affecting the mesentery can have serious consequences. Mesenteric ischemia, for example, occurs when blood flow to the mesentery is blocked, leading to a lack of oxygen to the intestinal organs. This can cause severe pain and damage to the intestines. Other conditions that can affect the mesentery include mesenteric cysts, tumors, and hernias. Surgical procedures involving the mesentery, such as resections or repairs, require careful attention to preserve its vital functions.