Calcium Supplements Memorial Sloan Kettering Cancer Center
When blood calcium rises to standard levels, the parathyroid glands stop secreting PTH. A slight raise in blood calcium concentration stimulates the production and secretion of the peptide hormone, calcitonin, by the thyroid gland. Calcitonin inhibits PTH secretion, decreases each bone resorption and intestinal calcium absorption, and increases urinary calcium excretion . Even though this complex technique enables...