Intermediate Common Bile Duct Quiz

Q1. Which portion of the common bile duct lies in the free edge of the lesser omentum?

• Pancreatic portion only
• Intramural portion
• Supraduodenal portion
• Intrahepatic portion

Q2. Which portion of the common bile duct lies behind the first part of the duodenum?

• Supraduodenal portion
• Cystic portion
• Retroduodenal portion
• Intrahepatic portion

Q3. How is the pancreatic portion of the common bile duct typically positioned?

• Inside the portal vein
• On the anterior surface of the spleen
• In a posterior groove or within the pancreatic head
• Within the pancreatic tail

Q4. Which relationship correctly describes the portal triad in the hepatoduodenal ligament?

• Bile duct posterior, portal vein left, artery right
• All three structures lie in one vertical line
• Portal vein right, bile duct posterior, artery left
• Bile duct right, proper hepatic artery left, portal vein posterior

Q5. Why can disease of the pancreatic head obstruct the common bile duct?

• The distal duct is closely related to the pancreatic head
• The duct passes through the pancreatic tail
• The duct lies inside the spleen
• The duct terminates in the stomach

Q6. Which arteries are important sources for the blood supply of the common bile duct?

• Coronary and pulmonary arteries
• Renal arteries only
• Hepatic and gastroduodenal or pancreaticoduodenal arterial branches
• External carotid arteries

Q7. How is the arterial supply of the common bile duct organized along much of its length?

• As longitudinal periductal arterial channels
• As one terminal artery with no anastomoses
• As glomerular capillary tufts
• As vessels running only inside the lumen

Q8. Why can a stone in the distal common bile duct interfere with pancreatic drainage?

• The portal vein drains into the pancreatic duct
• The gallbladder empties directly into the pancreas
• The biliary and pancreatic ducts commonly converge near the ampulla
• The cystic duct passes through pancreatic acini

Q9. Which part of the common bile duct traverses the duodenal wall?

• Retroduodenal portion
• Hilar portion
• Intramural portion
• Supraduodenal portion

Q10. What is the principal role of the terminal sphincteric apparatus around the bile duct?

• To contract the gallbladder wall directly
• To close the pylorus
• To regulate biliary outflow and limit reflux
• To pump portal blood