Overview
The hepatobiliary system metabolizes nutrients detoxifies substances and produces bile for digestion. The liver receives dual blood supply from the portal vein and hepatic artery and drains via hepatic veins to the inferior vena cava. The biliary tree transports bile from hepatocytes to the duodenum.
Liver Structure
The liver is organized into lobules with hepatocytes performing metabolic and synthetic functions. Bile canaliculi collect bile produced by hepatocytes and drain into bile ducts. Sinusoidal architecture facilitates exchange between blood and hepatocytes.
Gallbladder and Bile Ducts
The gallbladder stores and concentrates bile and releases it during digestion. The common bile duct conveys bile to the duodenum and can be obstructed by stones or tumors. Imaging evaluates ductal dilation and biliary pathology.
Clinical Relevance
Hepatobiliary diseases include hepatitis cirrhosis biliary obstruction and hepatocellular carcinoma. Ultrasound CT and MRI characterize lesions and guide interventions such as ERCP and percutaneous drainage. Liver function tests complement imaging for comprehensive assessment.