Intermediate Biliary Tree Quiz

Q1. Which structures are considered part of the intrahepatic biliary tree?

• Bile duct branches within the liver that converge toward the hepatic ducts
• The hepatic veins and inferior vena cava
• Only the cystic duct and gallbladder
• Only the common bile duct below the pancreas

Q2. Within the hepatoduodenal ligament, what is the usual relationship of the common bile duct to the portal vein?

• Anterior to the portal vein
• Inferior to the pancreas only
• Inside the portal vein
• Posterior to the portal vein

Q3. Which structure usually lies to the left of the common bile duct in the hepatoduodenal ligament?

• Right renal artery
• Superior mesenteric vein
• Inferior vena cava
• Proper hepatic artery

Q4. What is the relationship of the common bile duct to the first part of the duodenum?

• It passes through the duodenal lumen
• It lies entirely anterior to the first part
• It terminates in the duodenal bulb
• It passes posterior to the first part of the duodenum

Q5. How is the distal common bile duct related to the head of the pancreas?

• It lies in a posterior groove or within the head of the pancreas
• It never contacts the pancreas
• It passes through the pancreatic tail
• It lies only on the anterior pancreatic surface

Q6. What is the function of the sphincter of Oddi complex?

• It regulates bile and pancreatic juice flow into the duodenum
• It closes the pylorus
• It contracts the gallbladder directly
• It controls portal venous flow

Q7. Which fold is commonly present within the cystic duct?

• Plicae circulares of the jejunum
• Gastric rugae only
• Spiral folds
• Semilunar colonic folds

Q8. What region is bounded by the cystic duct, common hepatic duct, and inferior surface of the liver in the commonly used surgical definition?

• Hepatocystic triangle
• Femoral triangle
• Hesselbach triangle
• Carotid triangle

Q9. Which artery commonly supplies the extrahepatic bile ducts through a longitudinal arterial network?

• Pulmonary arteries
• Coronary arteries
• External carotid arteries
• Branches from hepatic and gastroduodenal arterial systems

Q10. Why can a distal common bile duct obstruction affect both the biliary tree and pancreatic drainage?

• The gallbladder lies inside the pancreas
• Their terminal ducts commonly join or open closely together
• The portal vein drains into the pancreatic duct
• The hepatic ducts pass through pancreatic acini