Thymus gland: It should not be confused with the

It should not be confused with the thyroid gland , which is located in the neck. This article explores the location of the thymus, its anatomy, its function, and disorders of the thymus. The thymus is located at the top of the sternum (breastbone), near the collarbone. It resides between the sternum and the aortic arch. The thymus gland is a soft organ in the chest that produces T cells and hormones. It helps fight infections, regulate aging, and prevent autoimmune diseases. Learn about its anatomy, associated conditions, and how it changes over time. The thymus gland is distinct from other endocrine glands in that it is active only before puberty. The gland grows the largest at puberty, after which the gland is slowly replaced by adipose tissue. The thymus gland is a pink, lobulated lymphoid organ, located in the thoracic cavity and neck. In the adolescent, it is involved the development of the immune system. After puberty, it atrophies and is replaced by fat.