Which hormone stimulates the release of thyroid hormone?

thyroid hormone release is stimulated by thyroid stimulating hormone,which is released by adenohypophysis of pituitary gland .this in turn stimulated by thyroid releasing factor which is released by hypothalamus .

in the presence of this thyroid stimulating hormone conversion of inactive iodine to active iodine takes place.and also formation of T3 and T4 hormones occurs under the influence of this hormone only, this reaction is favored by this hormone.

it stimulates thyroid gland to release thyroid hormone which is composed of T3 and T4 units.T is nothing but the tyrosine units present in throglobulin a colloid present in lumen of thyroid follicles.