part of part of develops from develops from embryo liver primordium septum transversum endodermal part of digestive tract embryonic tissue foregut-midgut junction 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 UBERON:0008835 Wikipedia:Hepatic_diverticulum EHDAA:1530 AAO:0011057 NCIT:C34187 EHDAA2:0000740 epithelium of foregut-midgut junction digestive tract diverticulum