The single most important regulator of calcium levels in the blood is ________.
A) calcitonin
B) parathyroid hormone
C) thyroid hormone
D) gonadotropic hormones

Question

Quizplus · Accepted Answer

Parathyroid hormone is the single most important regulator of calcium levels in the blood. When calcium levels in the blood decrease, the parathyroid glands release parathyroid hormone, which increases calcium levels by stimulating the release of calcium from bone, increasing calcium absorption in the kidneys, and increasing calcium absorption in the intestines.

The Single Most Important Regulator of Calcium Levels in the Blood