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': 'True about calcium reabsorption in the kidney? \nSelect and explain. \nA. Most of the calcium reabsorption occurs in DCT, B. Major regulating factor is Parathormone, C. Parathormone decreases calcium reabsorption, D. Increased plasma phosphate decreases calcium reabsorption', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Major regulating factor is parathormone.The primary controller of renal tubular reabsorption is parathormone.It increases calcium reabsorption in Loop of Henle (thick ascending limb) and distal tubules. Most of the calcium (6590) is reabsorbed in PCT. Increased plasma phosphate increases calcium reabsorption.', 'role': 'assistant'}]