Suspensory Muscle of Duodenum

The suspensory muscle of duodenum, also known as the ligament of Treitz (named for Václav Treitz), connects the duodenum of the small intestine to the diaphragm. It contains a slender band of skeletal muscle from the diaphragm and a fibromuscular band of smooth muscle from the horizontal and ascending parts of the duodenum. When it contracts, the suspensory muscle of the duodenum widens the angle of the duodenojejunal flexure, allowing movement of the intestinal contents.