Name the hormones secreted by the thymus and the pineal glands. What are the targets of these glands' hormones?
The thymus, located in the neck, secretes thymosin which stimulates an increased immunologic response from lymphoid tissues. The pineal, a lobe in the roof of the rear portion of the fore-brain, secretes melatonin which helps the anterior pituitary regulate gonadotropic hormone production through regulating the hypothalamic releasing centers.
