part of part of develops_from embryo liver primordium septum transversum endodermal part of digestive tract embryonic tissue foregut-midgut junction epithelial sac hepatic diverticulum AAO:0011057 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. EHDAA2:0000740 EHDAA:1530 The caudal part of the septum transversum is invaded by the hepatic diverticulum which divides within it to form the liver and thus gives rise to the ventral mesentery of the foregut. UBERON:0008835 UMLS:C1512407 XAO:0000101 diverticulum hepaticum in mice, the hepatic diverticulum forms by E9 and expands into an obvious liver bud by E10 liver diverticulum uberon epithelium of foregut-midgut junction digestive tract diverticulum