Chloride is excreted by the chloride/bicarbonate anion exchanger and the cystic fibrosis transmembrane regulator (CFTR) which is found on the luminal surface of the bile duct epithelial cells. | Chloride is excreted by the chloride/bicarbonate anion exchanger and the cystic fibrosis transmembrane regulator (CFTR) which is found on the luminal surface of the bile duct epithelial cells. |