The main regulator of the calcium level in the blood is
A) parathyroid hormone.
B) thyroid hormone.
C) thymosin.
D) growth hormone.
E) insulin.

Name: The main regulator of the calcium level in the blood is A) parathyroid hormone. B) thyroid hormone. C) thymosin. D) growth hormone. E) insulin.
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Quizplus · Accepted Answer

Parathyroid hormone is the primary regulator of calcium levels in the blood, increasing calcium levels by stimulating bone resorption, increasing intestinal absorption, and reducing renal excretion of calcium.

The Main Regulator of the Calcium Level in the Blood