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How to study the function of the adrenal gland in humans 
Learn the anatomy of the adrenal gland. 
The adrenal gland is located directly above the kidney. There are two adrenal glands each is located on top of each kidney.
The adrenal gland has very important roles in maintaining homeostasis inside the body. This is manifested by the number of hormones that it secretes into the blood circulation.