Thyroid hormone Thyroid gland secretes three hormones – T4 (thyroxine), T3 (triiodothyronine) (both produced by thyroid follicle) and calcitonin ( produced by inter follicular “c” cells. Regulation of secretion- Secretion from thyroid is controlled by anterior pituitary, by elaboration of thyrotropin, while TSH ( thyroid stimulating hormone) itself is regulated by TRH ( Thyroid releasing […]