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: Physiology
[{'content': 'Which of the following nephrons has long loops of Henle? \nSelect and explain. \nA. Coical nephrons, B. Juxtamedullary nephrons, C. Outer coex, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: The majority of nephrons are coical, with glomeruli located in the mid-to-outer coex. Fewer nephrons are juxtamedullary, with glomeruli at the boundary of the coex and outer medulla. Coical nephrons have sho loops of Henle, whereas juxtamedullary nephrons have long loops of Henle. Ref: George, A.L., Neilson E.G. (2012). Chapter 277. Cellular and Molecular Biology of the Kidney. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo (Eds), Harrison's Principles of Internal Medicine, 18e.", 'role': 'assistant'}]