The adrenal glands are located on top of the kidneys. They are about 3 inches long and shaped like ...
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The adrenal glands are located on top of the kidneys. They are about 3 inches long and shaped like triangles. The adrenal glands release different classes of hormones that control many of your body's functions. When confronted by stress, the brain stimulates the adrenal glands to release hormones to help you cope. The outer portion of the gland, known as the cortex, produces cortisol. Effects of increased cortisol include heightened memory and a burst of energy. The center portion, known as the medulla, produces epinephrine and norepinephrine, also known as adrenaline and noradrenaline. Effects of these hormones include increased heart rate and dilation of the pupils. The hormones produced by the adrenal glands also help to control blood pressure, sweating, and other activities regulated by the sympathetic nervous system in response to stress.