large and small intestine ,duodenum @goodmedicine5056

@goodmedicine5056
The duodenum is the first segment of the small intestine, extending from the pyloric sphincter of the stomach to the jejunum. It can be divided into the superior, descending, horizontal and ascending parts. Only the proximal section of the superior part is intraperitoneal, and thus the most mobile, while the rest of the duodenum is retroperitoneal. Its functions are to dilute and neutralize digestive juices, digest and process chyme passed on from the stomach, receive pancreatic enzymes and bile, as well as absorb various nutrients. The wall of the duodenum consists of three main layers: an inner mucosa with defined circular folds (of Kerckring), an underlying submucosa and a double layered muscular coat.

Take a detailed look at the duodenum and the structures related to it in the video below.