For 10 points, name this gland that secretes thyroxine.
In one condition in this gland, antibodies attack a peroxidase or a large dimeric protein here, and that condition can occur alongside an inflammation of orbital fat and extraocular muscles more commonly associated with another disease here. The latter condition is treated by carbimazole and results in "orange-peel" skin and increased sympathetic nervous system function. Its parafollicular cells secrete a hormone that inhibits osteoclast activity and the absorption of calcium. This gland's major hormone is activated by deiodinases; relatedly, this gland is enlarged due to iodine-deficient diets in a condition called goiter. For 10 points, name this gland that secretes thyroxine.
In one condition in this gland, antibodies attack a peroxidase or a large dimeric protein here, and that condition can occur alongside an inflammation of orbital fat and extraocular muscles more commonly associated with another disease here.
{thyroid} gland