This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatobiliary and Pancreatic Sx, Subject name: Surgery
[{'content': 'With regard to hepatic anatomy, the falciform ligament divides the___from the ___. \nSelect and explain. \nA. Right unit, left unit, B. Left medial section, left lateral section, C. Caudate lobe, quadrate lobe, D. Left medial section, right lobe', 'role': 'user'}, {'content': "Answer: B \nExplanation: The overall anatomy of the liver is divided into a functional right and left 'unit' along the line between the gallbladder fossa and the middle hepatic vein ( Cantlie's line ). The falciform ligament divides the left lateral section from the left medial section. Clinical significance : The falciform ligament, along with the round, triangular, and coronary ligaments may be divided in a bloodless plane during liver resection. Couinaud liver segments RESECTIONS can be performed of individual segments or of the whole of the left or right hemiliver.", 'role': 'assistant'}]