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 common bile duct below the pancreas
• Only the cystic duct and gallbladder

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

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

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

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

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

• It passes posterior 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

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 lies only on the anterior pancreatic surface
• It never contacts the pancreas
• It passes through the pancreatic tail

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

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

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

• Spiral folds
• Plicae circulares of the jejunum
• Gastric rugae only
• 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?

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

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

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

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

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