Aspects of thyroid development in embryogenesis

The thyroid gland (glandula thyroidea) is an unpaired endocrine organ whose function is regulated by the central nervous system and the thyroid-stimulating hormone of the anterior pituitary gland.

The gland is located in the region of the anterior triangle of the neck (trigonum cervicale anterius), bounded from above by the base of the lower jaw, from below by the jugular notch of the sternum, on the sides by the anterior edges of the right and left sternocleidomastoid muscles.