The Biliary system is composed of the Galbladder and Bile ducts. Both intra-epatic and extra-epatic, which serve to drain the liver of bile and stored. The hollow, hair-shaped Galbladder is located in the Galbladder Fossa on the Antiroyne-Ferrier portion of the right lobe of the liver, closely associated with the interlobe of our fissure. It functions as the reservoir for storing and concentrating bile before it is transported to the duodenum. The Galbladder can be divided into a fundus, body, and neck. The fundus is the rounded, distal portion of the Galbladder sac that is frequently in contact with the anterior abdominal wall, the widest portion, the body, gently tapers superially into the neck. The narrow neck lies to the right of the porta-hapades and continues as the cystic duct. The neck contains circular muscles that create spiral folds within the mucosa called the spiral valves of heister. These valves are particularly prominent at the bend, formed by the neck and cystic duct, a common area for Galbladder impaction during acute or chronic colsostitis. The Galbladder has a muscular wall that contracts when stimulated by the hormone colsostocan enforcing bile through the extra-hapadic biliary system into the duodenum. Colsostocanin is secreted by cells in the duodenum as a response to ingestion of fat and protein into the stomach or duodenum. Bile is an alkaline fluid formed within the liver and stored in the Galbladder to be discharged into the duodenum for assistance in the digestion and absorption of fats and elimination of cholesterol and bilurban from the body. It is collected for transport to the Galbladder by the intra-hapadic bile ducts. The intra-hapadic bile ducts run beside that hepatic arteries and portal veins throughout the liver parentchema. The intra-hapadic ducts merge into successively larger ducts as they follow a course from the periphery to the central portion of the liver, eventually forming the right and left hepatic ducts. The right and left hepatic ducts unite at the portal apodies to form the proximal portion of the common hepatic duct, CHD, which marks the beginning of the extracellular hepatic biliary system. The CHD is located anterior to the portal vein and lateral to the hepatic artery in its coddled descent from the port of hepodies. As the CHD descends in the free border of the lesser omenthum, it is joined from the right by the cystic duct to form the common bile duct CBD. The CBD continues at coddled descent along with the hepatic artery and portal vein within the hepato-duanoligament. It curves slightly to the right, away from the portal vein, then courses posterior and medial to the first part of the duodenum behind the head of the pancreas. The CBD follows a groove on the posterior surface of the pancreatic head, then pierces the medial wall of the second part of the duodenum along with the main pancreatic duct, duct of worsum. Through the ampola of Vader, the ends of both ducts are surrounded by the circular muscle fibers of the sphincter of adi.