What is the function of the adrenal glands?

The adrenal glands are vital endocrine glands located on top of each kidney. Their primary function is to produce various hormones that play crucial roles in regulating several body processes. Among these hormones are corticosteroids, such as cortisol, which help manage metabolism, control blood pressure, and assist in the immune response. Additionally, the adrenal glands produce adrenaline and norepinephrine, hormones that are critical in the body's response to stress and emergencies, contributing to the 'fight or flight' response. This multifaceted role of the adrenal glands directly supports the body's ability to adapt to stress and maintain homeostasis, making the option relating to their hormonal functions the most accurate.

Other choices refer to functions that are not associated with the adrenal glands, such as digestive enzymes, which are produced by the pancreas, the filtering of blood and urine production, which is the primary function of the kidneys, and regulation of body temperature and hydration, which involves other systems such as the hypothalamus and kidneys.