______ is a thyroid hormone which controls the balance of calcium in the body.

Calcitonin
Thyroxine
Calmodulin
all of these

Correct Answer: Calcitonin

Explanation:

Calcitonin is 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells of the thyroid, and in many other animals in the ultimopharyngeal body. It acts to reduce blood calcium, opposing the effects of parathyroid hormone.

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