Question

Action of the parathyroid hormone is:

a) Increased calcium and phosphate absorption in intestine (by increased 1,25-dihydroxyvitamin D₃ production) 

b) Decreased calcium excretion and increased phosphate excretion in kidneys 

c) In bone, calcium and phosphate resorption increased by high doses. Low doses may increase bone formation. 

d) All of the above 

Answer 1

d) All of the above