This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small and Large intestine, Subject name: Anatomy
[{'content': 'CT scan abdomen at the level of the twelfth thoracic veebra in a pt., Which structure provides an attachment of the suspensory muscle of the duodenum (ligament of Treitz)? \nSelect and explain. \nA. A, B. B, C. C, D. D', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The duodenojejunal flexure is suppoed by a fibromuscular band called the suspensory ligament of the duodenum (ligament of Treitz), which is attached to the right crus of the diaphragm. C. - The pancreas is an endocrine and exocrine gland; is retroperitoneal in position and receives blood from the splenic, gastroduodenal, and superior mesenteric aeries. E - The spleen lies in the left hypochondriac region, is hematopoietic in early life, and later functions in worn-out red blood cell destruction. It filters blood, stores red blood cells, and produces lymphocytes and antibodies. D - The splenic aery is a branch of the celiac trunk, follows a touous course along the superior border of the pancreas, and divides into several branches that run through the lienorenal ligament. A -. The common hepatic aery is divided into the proper hepatic and gastroduodenal aeries.', 'role': 'assistant'}]