Intermediate Common Hepatic Duct Quiz

Q1. Which boundary of the commonly used hepatocystic triangle is formed by the common hepatic duct?

• Medial boundary
• It does not border the triangle
• Posterior boundary only
• Superior boundary

Q2. Why is the common hepatic duct important during cholecystectomy?

• It is remote from the hepatocystic triangle
• It lies close to the cystic duct and operative dissection field
• It is contained within the gallbladder wall
• It lies entirely within the pancreas

Q3. What is the usual relationship of the common hepatic duct to the portal vein in the hepatoduodenal ligament?

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

Q4. Which artery is commonly related to the common hepatic duct within the portal triad region?

• Splenic artery in the splenic hilum
• Femoral artery
• Inferior mesenteric artery
• Proper hepatic artery

Q5. What determines the distal end of the common hepatic duct?

• Junction with the main pancreatic duct
• Junction with the cystic duct
• Union with the portal vein
• Entry into the duodenum

Q6. Why can the length of the common hepatic duct vary between individuals?

• The gallbladder always replaces part of the duct
• The portal vein becomes part of the duct
• The levels of hepatic duct confluence and cystic duct insertion vary
• The duct changes length with every heartbeat

Q7. Which vascular pattern contributes to the blood supply of the extrahepatic hepatic duct region?

• Pulmonary arterial branches
• Small branches of the hepatic arterial system
• Renal arteries only
• Coronary arteries

Q8. Why can obstruction of the common hepatic duct cause intrahepatic biliary dilatation?

• It blocks drainage downstream from the right and left hepatic duct confluence
• It blocks pancreatic secretion only
• It prevents portal blood from entering hepatic sinusoids
• It obstructs the renal pelvis

Q9. Which anatomical variation can increase the risk of injury near the common hepatic duct?

• A duplicated inferior vena cava within the duct lumen
• A renal artery entering the gallbladder
• Absence of all intrahepatic bile ducts
• Variant right sectoral duct drainage

Q10. What is the relationship between the common hepatic duct and common bile duct?

• The cystic duct junction separates the common hepatic duct from the common bile duct
• The common bile duct is proximal to the hepatic duct confluence
• The common hepatic duct is a branch of the pancreatic duct
• They are unrelated parallel ducts