part of part of develops from develops from capable of capable of branched duct epithelial cell hepatoblast cholangiocyte FMA:86481 https://cellxgene.cziscience.com/cellguide/CL_1000488 An epithelial cell that is part of the bile duct. Cholangiocytes contribute to bile secretion via net release of bicarbonate and water. They are cuboidal epithelium in the small interlobular bile ducts, but become columnar and mucus secreting in larger bile ducts approaching the porta hepatis and the extrahepatic ducts. epithelial cell of bile duct ZFA:0009397 bicarbonate transmembrane transporter activity bile acid secretion bile duct