Which gland secretes parathyroid hormone that regulates calcium levels?

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Multiple Choice

Which gland secretes parathyroid hormone that regulates calcium levels?

Explanation:
Calcium regulation in the body is controlled by parathyroid hormone released by the parathyroid glands. When calcium levels drop, PTH raises blood calcium through three main actions: it stimulates bone resorption to release calcium into the bloodstream, increases calcium reabsorption in the kidneys, and promotes activation of vitamin D to the active form (calcitriol), which boosts intestinal calcium absorption. The thyroid gland makes calcitonin, which lowers calcium, while the adrenal glands and pancreas do not secrete PTH. So the gland responsible for secreting PTH and regulating calcium is the parathyroid gland.

Calcium regulation in the body is controlled by parathyroid hormone released by the parathyroid glands. When calcium levels drop, PTH raises blood calcium through three main actions: it stimulates bone resorption to release calcium into the bloodstream, increases calcium reabsorption in the kidneys, and promotes activation of vitamin D to the active form (calcitriol), which boosts intestinal calcium absorption. The thyroid gland makes calcitonin, which lowers calcium, while the adrenal glands and pancreas do not secrete PTH. So the gland responsible for secreting PTH and regulating calcium is the parathyroid gland.

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