in order to elucidate the maternal factors influencing the functional development of the fetal rat thyroid gland , pregnant rats were subjected to either thyroidectomy or administration of ptu or tsh and the thyroid glands of the fetuses were examined chronologically by immunohistochemistry to detect thyroglobulin ( tg ) , t4 and t3 .
C0040145
thyroidectomy
C0040132
thyroid glands