The thyroid and parathyroid glands are endocrine glands located in the anterior region of the neck.
Thyroid gland
The thyroid gland is typically bi-lobed with a short isthmus connecting between the lobes.
It is surrounded by a connective tissue capsule and is firmly attached to the cricoid cartilage and the superior part of the trachea by connective tissue.
In some cases, the thyroid gland has an additional lobe, called