" The C cells of this organ also produce a hormone that reduces calcium levels in the blood, calcitonin.
Ord, De Quervain and Hashimoto described ways that inflammation of this organ causes severe enlargement. Its namesake tyrosine-based hormone is produced in too-low levels by sufferers of a disorder once known as cretinism, and hyperactivity of this organ is the most common symptom of Graves' disease, a severe form of which leads to its namesake "storm." The C cells of this organ also produce a hormone that reduces calcium levels in the blood, calcitonin. For 10 points, name this gland in the neck that is dependent on iodine for regulation and the enlargement of which can lead to a goiter.
Ord, De Quervain and Hashimoto described ways that inflammation of this organ causes severe enlargement.
{Thyroid} Gland