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': 'Celiac plexus is located: \nSelect and explain. \nA. Anterolateral to aorta, B. Poterolateral to aorta, C. Anteromedial to lumbar sympathetic chain, D. Poterolateral to lumbar sympathetic chain', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Celiac plexus is present on the anterior side of the aorta around the beginning of celiac trunk .\n\nIt lies over the anterolateral surface of the aorta at the T12 / L1 vertebral level.\nCeliac plexus is retroperitoneal and located behind the stomach and the omental bursa, and in front of the crura of the diaphragm.\nIn pictorial representation it appear anteromedial to sympathetic trunks as well, though no such statement is mentioned in standard textbooks.\nFrequently celiac plexus block (fluoroscopically guided injection) is performed by pain management specialists and radiologists is performed via CT guidance.\nIntractable pain related to chronic pancreatitis is an important indication for celiac plexus ablation.\n\nKEY CONCEPT:\nCeliac plexus is the largest visceral plexus and is located deep in the retroperitoneum, over the\xa0anterolateral surface of the aorta and around the origin of the celiac trunk.', 'role': 'assistant'}]