Parathyroid glands - image description

The illustration shows the position of the four parathyroid glands on the surface of the thyroid gland. The thyroid is in the lower middle part of the neck. Behind and above the thyroid gland is the wind pipe, made up of the larynx and the trachea. Either side of the thyroid gland and parathyroids, and under the chin are some lymph nodes. The nodes are joined together by fine tubes called lymph vessels.