Adrenal glands are a type of endocrine gland that are triangle-shaped and located on top of the kidneys. The outer part of the adrenal glands is known as the cortex and releases hormones including testosterone and cortisol. The inner area of the adrenal glands is known as the medulla and produces the hormones norepinephrine and epinephrine. The word adrenal comes from the Latin ad meaning "near" and Renes meaning "kidney."
When the adrenal glands produce too much or too little of a hormone, illness can result. Different types of adrenal disorders include Cushing's syndrome and Addison's disease.
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