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NCI Dictionary of Cancer Terms

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NCI Dictionary of Cancer Terms



adrenal gland  listen  (uh-DREE-nul...)

  A small gland that makes steroid hormones, adrenaline, and noradrenaline. These hormones help control heart rate, blood pressure, and other important body functions. There are two adrenal glands, one on top of each kidney. Also called suprarenal gland.

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Anatomy of the adrenal gland; drawing of the abdomen showing the left and right adrenal glands, the left and right kidneys, and major blood vessels. A cross section of an adrenal gland is in an inset showing the adrenal cortex and the adrenal medulla.