Calcitonin Does All of the Following Except

Question

Calcitonin does all of the following except
A) increase bone deposition.
B) inhibit osteoclasts.
C) cause kidneys to excrete calcium.
D) cause less calcitriol to be secreted.
E) increase its level in pregnant women.

Accepted Answer

Calcitonin primarily helps regulate calcium levels in the blood by inhibiting osteoclast activity, which decreases bone resorption, and by increasing calcium excretion in the kidneys. It does not directly increase bone deposition; that process is more closely associated with the actions of parathyroid hormone and calcitriol.