The hormones that regulate the amount of calcium in the bones and the blood are:
A)PTH and calcitonin
B)thyroxine and calcitonin
C)PTH and GH
D)GH and thyroxine

Question

Quizplus · Accepted Answer

PTH (parathyroid hormone) and calcitonin are the two hormones that regulate the amount of calcium in the bones and the blood. PTH increases the amount of calcium in the blood by causing the bones to release calcium and increasing calcium absorption in the kidneys and intestines. Calcitonin, on the other hand, decreases the amount of calcium in the blood by inhibiting the release of calcium from bones. Thyroxine and GH (growth hormone) do not directly regulate calcium levels in the body.

The Hormones That Regulate the Amount of Calcium in the Bones