Calcitonin ________.
A)is secreted when blood levels of calcium are too high
B)is secreted from the parathyroid glands
C)stimulates vitamin D activity
D)increases calcium retention in the kidneys

Question

Quizplus · Accepted Answer

Calcitonin is secreted by the thyroid gland when blood levels of calcium are too high. It works to lower blood calcium levels by increasing the uptake of calcium into bones and decreasing the amount of calcium reabsorbed by the kidneys.