Final answer:
The thymus gland is a bi-lobed organ located in the chest that produces T cells for the immune system.
Step-by-step explanation:
The thymus gland is a bi-lobed organ located in the chest behind the breastbone (sternum). It is responsible for the production and maturation of T cells, which are crucial for the adaptive immune system. Located above the heart, the thymus gland is surrounded by a fibrous capsule of connective tissue.