question_answer

Blood calcium level is a resultant of how much dietary calcium is absorbed, how much calcium is lost in the urine, how much bone dissolves releasing calcium into the blood and how much calcium from blood enter tissues. A number of factors play an important role in these processes. Mark the one which has no role

A)  Vitamin D

B)  Thymosin

C)  Thyrocalcitonin

D)  Parathyroid hormone