calcium metabolism Flashcards

phosphate: recall the regulation of phosphate reabsorption

1
Q

what hormones causes reabsorption of PO4 3-

A

calcitriol (active form of vitamin D3)

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2
Q

what is the function of calcitriol

A

maintain bone so reabsorbs Ca2+ and PO4 3-

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3
Q

what stops reabsorption of PO4 3-

A

fibroblast growth factor 23 (direct negative feedback on calcitriol)

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