Kalmar "biliary ductule" tana nufin ƙaramin bututu ko bututu a cikin hanta wanda ke ɗaukar bile, ruwa mai narkewa, daga hanta zuwa bile ducts. Wadannan ductules kuma ana kiran su da intrahepatic bile ductules ko bile canaliculi. Suna da alhakin tattarawa da jigilar bile daga ƙwayoyin hanta, wanda aka sani da hepatocytes, zuwa manyan bile ducts wanda a ƙarshe ya kai ga gallbladder da ƙananan hanji. Bile yana taka muhimmiyar rawa wajen narkar da mai da kuma shayar da bitamin mai-soluble.