endodermal part of digestive tract embryonic tissue epithelial sac hepatic diverticulum XAO:0000101 An out-pocket of thickened ventral foregut epithelium adjacent to the developing heart. Constitutes the first morphological sign of the embryonic liver. The anterior portion of the hepatic diverticulum gives rise to the liver and intrahepatic biliary tree, while the posterior portion forms the gall bladder and extrahepatic bile ducts. liver diverticulum Wikipedia:Hepatic_diverticulum EHDAA:1530 AAO:0011057 UMLS:C1512407 NCIT:C34187 EHDAA2:0000740 epithelium of foregut-midgut junction digestive tract diverticulum