develops_from develops from develops from transformation of thyroid gland A two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, and producing various hormones, such as triiodothyronine and calcitonin[BTO]. glandula thyroidea thyroid endocrine gland endoderm-derived structure thyroid diverticulum structure with developmental contribution from neural crest