The pituitary gland has an anterior and posterior lobe that secrete hormones. The anterior lobe secretes hormones including adrenocorticotropic hormone (ACTH) which is used to diagnose and treat conditions like Addison's disease and infantile spasms. The thyroid gland also secretes hormones including thyroxine which regulates metabolism and is used to treat hypothyroidism. The document provides an overview of the hormones secreted by the pituitary and thyroid glands and their therapeutic uses and pathophysiology.