This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Communicating opening between greater sac and lesser sac? \nSelect and explain. \nA. Foramen of winslow, B. Foramen of Monro, C. Hepatorenal pouch, D. Pouch of Douglas', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Epiploic foramen (foramen of winslow or aditus to lesser sac) is a slit-like opening through which lesser sac communicates with greater sac. It is situated at the level of T12 veebra. Its boundries are :- Anterior :- Right free margin of lesser omentum (contains poal vein, hepatic aery proper and bile duct). Posterior :- IVC, right suprarenal gland and T12 veebra. Superior :- Caudate lobe of liver. Inferior :- 1 pa of duodenum and horizontal pa of hepatic aery.', 'role': 'assistant'}]