The areas of the adrenal gland in the kidneys are the cortex and medulla.
The outer or peripheral section of the brain is the cortex, whereas the interior part is the medulla.
The bulk of the nephron structure is found in the renal medulla, which is the innermost area of the kidney and is organized into pyramid-like structures.
Between the renal capsule and the renal medulla is an area that includes blood arteries that connect to the nephrons, which is known as the renal cortex.
Final answer:
The cortex and medulla are the two regions of the adrenal gland.