Specific charcteristics of the blood supply of the sphincteric apparatus of the extrahepatic bile ducts during the prenatal period of hu�an ontogenesis

Abstract

The blood supply of the extrahepatic bile ducts in man is notable for variability which is important to take into account during surgical interferences on the organs of the hepatobiliary system [1]. The publications of recent years adduce only scrap- py information, pertaining to the formation of the blood channel of the derivatives of the intestinal tube during the intrauterine development (IUD) in a human [2-5]. At the same time, ascertaining the specific characteristics of the formation of the blood vessels of the common bile duct (CBD) at an early stage of human ontogenesis will enable to understand deeper the consistent patterns of the vascularization of the biliary tract [6, 7]. The aim of the research is to study the specific features of the organization of the blood stream of the CBD during the prenatal period of human on- togenesis.