Question

Blood Ca2+ deficiency stimulates __________ secretion, which leads to __________.
A. calcitonin; more urinary phosphate reabsorption
B. calcitriol; more urinary phosphate excretion
C. parathyroid hormone; increased osteoclast activity
D. growth hormone; increased osteoblast activity
E. thyroid hormone; less urinary calcium excretion

Answer

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