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': 'Main pancreatic duct is derived from ? \nSelect and explain. \nA. Paly from the dorsal pancreatic bud and paly from the ventral pancreatic bud, B. Dorsal pancreatic bud only, C. Ventral pancreatic bud only, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The pancreas develops from the two endodermal buds, dorsal and ventral, that arise from the pa of the gut that later forms the second pa of the duodenum. The ventral bud forms the lower pa of the head, and the uncinate process of the pancreas, while the upper pa of the head, the body and the tail are formed from the dorsal bud. The main pancreatic duct is formed, in its distal pa, by the duct of dorsal bud, and in its proximal pa by the duct of the ventral bud. The islets of Langerhans are also derived from the primitive duct system. Ref: Textbook of Human Embryology, 6th Ed, Page 184.', 'role': 'assistant'}]