👉 In medical terminology, a pituitary gland is a small, fluid-filled organ located in the neck of the brain. It produces hormones that regulate various bodily functions such as growth and development, metabolism, reproduction, and stress response. The primary function of the pituitary gland is to produce and secrete hormones, which are essential for regulating these functions. These hormones include growth hormone (GH), prolactin, thyroid-stimulating hormone (TSH), insulin, cortisol, and other substances