Thyroid's two hormone-producing cell types develop separately before merging, study finds

The thyroid gland consists of 2 types of hormone-producing cells that modulate the body's metabolism and calcium balance. In mammals, these compartment types merge into a azygous organ, whereas successful different vertebrates, they make into abstracted organs. How this fusion occurs has agelong remained unclear, adjacent though developmental defects tin pb to congenital abnormalities of the thyroid gland.