The role of the pituitary gland in hormonal regulation is to act as a master gland that controls other endocrine glands and regulates a wide range of bodily functions. Located at the base of the brain, the pituitary gland secretes various hormones, including growth hormone, thyroid-stimulating hormone, and adrenocorticotropic hormone. These hormones influence processes such as growth, metabolism, and stress responses. The pituitary gland is regulated by the hypothalamus, which sends signals to either stimulate or inhibit hormone release, thus maintaining homeostasis and coordinating responses to internal and external signals.