In which gland is the hormone calcitonin released? A: Hypophysis; B: Pancreas; or C: Thyroid.

ANSWER: The thyroid gland releases calcitonin, a hormone that acts to reduce blood Ca+2 in several ways: It inhibits Ca+2 absorption by the intestines; it inhibits osteoclast activity in bones; and it inhibits phosphate resorption by the kidney tubules.

originally published 06/30/2010

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