43 Questions
What is the function of the sphincter present in the bile duct?
To regulate bile flow
Where does the bile duct terminate?
By uniting with the pancreatic duct to form the hepatopancreatic ampulla
What problems can arise within the common bile duct?
Obstruction-related issues
Where is the proximal supraduodenal part of the bile duct situated?
Within the free edge of the lesser omentum
What is the accepted upper limit of normal calibre for the common bile duct (CBD)?
6mm
How much diameter is allowed for each decade over 60 years for the normal CBD?
1mm
What condition can result if the common bile duct is obstructed by a gallstone?
Choledocholithiasis
Where is the common bile duct most readily seen on abdominal ultrasonography?
Porta hepatis
What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?
Absence of Doppler signal
What is one form of treatment for an obstructed common bile duct?
Cholecystenterostomy
What are rare deformities of the common bile duct mentioned in the text?
Cystic dilations, choledochoceles, and biliary atresia
What is the upper limit of normal calibre for the common bile duct (CBD)?
6mm
What is the upper limit (95% prediction interval) for the common bile duct after a few months of cholecystectomy?
10mm
What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?
Absence of Doppler signal
What is the condition that can result from the common bile duct being obstructed by a gallstone?
Choledocholithiasis
What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?
Choledochoduodenostomy
What are rare deformities of the common bile duct mentioned in the text?
All of the above
Where is the common bile duct most readily seen on abdominal ultrasonography?
Porta hepatis
What has been documented since at least the time of Erasistratus?
Obstruction of the common bile duct and related jaundice
Where is the distal paraduodenal part of the bile duct situated?
Right-ward and accommodated by a groove upon the posterior aspect of the head of the pancreas
What is the length of the bile duct?
6–8 cm
What is the function of the sphincter in the bile duct?
To enable regulation of bile flow
What does the bile duct terminate by uniting with?
The pancreatic duct
What is the upper limit of normal calibre for the common bile duct (CBD)?
6mm
What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?
Absence of Doppler signal
What problems can arise within the common bile duct?
Cholangitis
What condition can result if the common bile duct is obstructed by a gallstone?
Choledocholithiasis
Where does the bile duct terminate?
Duodenum
What are rare deformities of the common bile duct mentioned in the text?
Cystic dilations
Since when has obstruction of the common bile duct and related jaundice been documented?
Ancient Greece
What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?
Choledochoduodenostomy
What is the length of the bile duct?
6-8 cm
Where is the distal paraduodenal part of the bile duct situated?
Groove upon the posterior aspect of the head of the pancreas
What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?
Presence of a sphincter
What is the function of the sphincter present in the bile duct?
Regulation of bile flow
What is the upper limit of normal calibre for the common bile duct (CBD)?
10mm
What distinguishes the common bile duct from the portal vein and hepatic artery on ultrasonography?
Absence of Doppler signal
What condition can result if the common bile duct is obstructed by a gallstone?
Ascending cholangitis
Where is the common bile duct most readily seen on abdominal ultrasonography?
Porta hepatis
What are rare deformities of the common bile duct mentioned in the text?
Cystic dilations and choledochoceles
What is one form of treatment for an obstructed common bile duct?
Cholecystenterostomy
What has been documented since at least the time of Erasistratus?
Obstruction of the common bile duct
What is the surgical procedure to create a connection between the common bile duct (CBD) and an alternative portion of the duodenum?
Choledochoduodenostomy
Test your knowledge of the anatomy and function of the bile duct with this quiz. Explore the structure, formation, and regulation of the bile duct, as well as its role in the biliary tract.
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