Adrenal Medulla - GCSE Biology Definition

The adrenal medulla is the inner region of the adrenal glands, which are small glands located on top of each kidney. It plays an important role in the body’s response to stress by producing the hormones adrenaline and noradrenaline. These hormones are involved in the “fight or flight” response, increasing heart rate, improving blood flow to muscles, and raising blood glucose levels to provide more energy. This helps the body respond quickly and effectively to stressful situations. Understanding the function of the adrenal medulla helps GCSE Biology students appreciate how the body maintains balance and responds to external stimuli.