Bile Duct Anatomy and Function Quiz
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Questions and Answers

What is the function of the sphincter present in the bile duct?

  • To prevent reflux of stomach acids
  • To regulate pancreatic juice flow
  • To regulate bile flow (correct)
  • To facilitate digestion
  • Where does the bile duct terminate?

  • By uniting with the pancreatic duct to form the hepatopancreatic ampulla (correct)
  • By joining the duodenum directly
  • By emptying into the gallbladder
  • By connecting with the stomach
  • What problems can arise within the common bile duct?

  • Excessive bile production
  • Gallbladder malfunction
  • Pancreatic inflammation
  • Obstruction-related issues (correct)
  • Where is the proximal supraduodenal part of the bile duct situated?

    <p>Within the free edge of the lesser omentum</p> Signup and view all the answers

    What is the accepted upper limit of normal calibre for the common bile duct (CBD)?

    <p>6mm</p> Signup and view all the answers

    How much diameter is allowed for each decade over 60 years for the normal CBD?

    <p>1mm</p> Signup and view all the answers

    What condition can result if the common bile duct is obstructed by a gallstone?

    <p>Choledocholithiasis</p> Signup and view all the answers

    Where is the common bile duct most readily seen on abdominal ultrasonography?

    <p>Porta hepatis</p> Signup and view all the answers

    What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?

    <p>Absence of Doppler signal</p> Signup and view all the answers

    What is one form of treatment for an obstructed common bile duct?

    <p>Cholecystenterostomy</p> Signup and view all the answers

    What are rare deformities of the common bile duct mentioned in the text?

    <p>Cystic dilations, choledochoceles, and biliary atresia</p> Signup and view all the answers

    What is the upper limit of normal calibre for the common bile duct (CBD)?

    <p>6mm</p> Signup and view all the answers

    What is the upper limit (95% prediction interval) for the common bile duct after a few months of cholecystectomy?

    <p>10mm</p> Signup and view all the answers

    What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?

    <p>Absence of Doppler signal</p> Signup and view all the answers

    What is the condition that can result from the common bile duct being obstructed by a gallstone?

    <p>Choledocholithiasis</p> Signup and view all the answers

    What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?

    <p>Choledochoduodenostomy</p> Signup and view all the answers

    What are rare deformities of the common bile duct mentioned in the text?

    <p>All of the above</p> Signup and view all the answers

    Where is the common bile duct most readily seen on abdominal ultrasonography?

    <p>Porta hepatis</p> Signup and view all the answers

    What has been documented since at least the time of Erasistratus?

    <p>Obstruction of the common bile duct and related jaundice</p> Signup and view all the answers

    Where is the distal paraduodenal part of the bile duct situated?

    <p>Right-ward and accommodated by a groove upon the posterior aspect of the head of the pancreas</p> Signup and view all the answers

    What is the length of the bile duct?

    <p>6–8 cm</p> Signup and view all the answers

    What is the function of the sphincter in the bile duct?

    <p>To enable regulation of bile flow</p> Signup and view all the answers

    What does the bile duct terminate by uniting with?

    <p>The pancreatic duct</p> Signup and view all the answers

    What is the upper limit of normal calibre for the common bile duct (CBD)?

    <p>6mm</p> Signup and view all the answers

    What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?

    <p>Absence of Doppler signal</p> Signup and view all the answers

    What problems can arise within the common bile duct?

    <p>Cholangitis</p> Signup and view all the answers

    What condition can result if the common bile duct is obstructed by a gallstone?

    <p>Choledocholithiasis</p> Signup and view all the answers

    Where does the bile duct terminate?

    <p>Duodenum</p> Signup and view all the answers

    What are rare deformities of the common bile duct mentioned in the text?

    <p>Cystic dilations</p> Signup and view all the answers

    Since when has obstruction of the common bile duct and related jaundice been documented?

    <p>Ancient Greece</p> Signup and view all the answers

    What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?

    <p>Choledochoduodenostomy</p> Signup and view all the answers

    What is the length of the bile duct?

    <p>6-8 cm</p> Signup and view all the answers

    Where is the distal paraduodenal part of the bile duct situated?

    <p>Groove upon the posterior aspect of the head of the pancreas</p> Signup and view all the answers

    What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?

    <p>Presence of a sphincter</p> Signup and view all the answers

    What is the function of the sphincter present in the bile duct?

    <p>Regulation of bile flow</p> Signup and view all the answers

    What is the upper limit of normal calibre for the common bile duct (CBD)?

    <p>10mm</p> Signup and view all the answers

    What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?

    <p>Absence of Doppler signal</p> Signup and view all the answers

    What condition can result if the common bile duct is obstructed by a gallstone?

    <p>Ascending cholangitis</p> Signup and view all the answers

    Where is the common bile duct most readily seen on abdominal ultrasonography?

    <p>Porta hepatis</p> Signup and view all the answers

    What are rare deformities of the common bile duct mentioned in the text?

    <p>Cystic dilations and choledochoceles</p> Signup and view all the answers

    What is one form of treatment for an obstructed common bile duct?

    <p>Cholecystenterostomy</p> Signup and view all the answers

    What has been documented since at least the time of Erasistratus?

    <p>Obstruction of the common bile duct</p> Signup and view all the answers

    What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?

    <p>Choledochoduodenostomy</p> Signup and view all the answers

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