Development of the digestive system forms the mesentery proper. The ventral mesentery, located in the region of the terminal part of the esophagus, the stomach and the upper part of the duodenum, is derived from the septum transversum. Growth of the liver into the mesenchyme of the septum transversum divides the ventral mesentery into the lesser omentum, extending from the lower portion of the esophagus, the stomach, and the upper portion of the duodenum to the liver and the falciform ligament, extending from the liver to the ventral body wall. Development of the digestive system The development of the digestive system concerns the epithelium of
Development of the digestive system the 10th week, it returns into the abdominal cavity. While these processes are occurring, the midgut loop rotates 270° counterclockwise. Common abnormalities at this stage of development include remnants of the vitelline duct, failure of the midgut to return to the abdominal cavity, malrotation, stenosis, and duplication of parts. The hindgut gives rise to the region from the distal third of the transverse colon to the upper part of the anal canal. The distal part of the anal canal originates from the ectoderm. The hindgut enters the posterior region of the cloaca (future anorectal canal), and the allantois enters the