Certified Nurses Operating Room (CNOR) Practice Exam

Which anatomical structures are identified in the Triangle of Calot?

1. Common bile duct, hepatic artery, cystic duct

2. Common hepatic duct, cystic artery, cystic duct

3. Cystic duct, pancreatic duct, common bile duct

4. Hepatic duct, common bile duct, portal vein

The correct answer is: Common hepatic duct, cystic artery, cystic duct

The Triangle of Calot is an important anatomical region in the context of gallbladder surgery, specifically during cholecystectomy procedures. This triangle is defined by three key structures: the cystic duct, the common hepatic duct, and the cystic artery. The identification of these structures within the triangle is crucial to avoid complications such as injury to the bile ducts and blood vessels during surgery. The correct answer indicates the presence of the cystic duct, which transports bile from the gallbladder, the common hepatic duct, which carries bile from the liver, and the cystic artery, which supplies blood to the gallbladder. Recognizing these structures helps surgeons navigate the complex anatomy of the biliary system safely. The other options contain incorrect combinations of anatomical structures. For instance, some options include vessels or ducts that are not typically associated with the Triangle of Calot, which would not provide a correct representation of this anatomical landmark. Thus, understanding the defining structures of the Triangle of Calot is essential for surgical procedures involving the gallbladder and surrounding organs.