The primary function of the hypophysis, or pituitary gland, in hormone regulation is to produce and secrete hormones that control various physiological processes. It acts as the "master gland," influencing other endocrine glands and regulating functions such as growth, metabolism, and reproduction. By releasing hormones like growth hormone and thyroid-stimulating hormone, the hypophysis plays a crucial role in maintaining homeostasis within the body. Understanding its functions is vital for addressing hormonal disorders and developing targeted therapies.