Answer:
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:
