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.
Anatomy of the adrenal gland. There are two adrenal glands, one on top of each kidney. The outer part of each gland is the adrenal cortex; the inner part is the adrenal medulla.