The primary function of hormones produced by the adrenal glands is to regulate metabolism, stress response, and blood pressure. The adrenal glands produce several important hormones, including cortisol, adrenaline, and aldosterone. Cortisol helps manage stress and maintains glucose levels while adrenaline triggers the body's fight-or-flight response during stressful situations. Aldosterone plays a crucial role in regulating sodium and potassium levels, thus influencing blood pressure. These hormones are essential for maintaining homeostasis and responding effectively to environmental challenges.