<P> Thyroid hormones ( T and T ) are produced by the follicular cells of the thyroid gland and are regulated by TSH made by the thyrotropes of the anterior pituitary gland . The effects of T in vivo are mediated via T ( T is converted to T in target tissues ) . T is 3 - to 5 - fold more active than T . </P>
<P> Thyroid hormones ( T and T ) are produced by the follicular cells of the thyroid gland and are regulated by TSH made by the thyrotropes of the anterior pituitary gland . The effects of T in vivo are mediated via T ( T is converted to T in target tissues ) . T is 3 - to 5 - fold more active than T . </P>
thyroid hormones ( t3 and t4 ) are produced by
thyroid hormones ( t3 and t4 ) are produced by
the follicular cells of the thyroid gland
the follicular cells of the thyroid gland