Which two hormones control the calcium levels of the blood and the bones?

Parathyroid hormone provides a powerful mechanism for controlling extracellular calcium and phosphate concentrations by regulating intestinal reabsorption, renal secretion, and exchange between the extracellular fluid and bone of these ions.

Also, Calcitonin, which is a peptide hormone secreted by the thyroid gland, tends to decrease plasma calcium concentration and usually has effects that are opposite to those of the parathyroid hormone.

Explanation:

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