The paradrenal, sub-arrenal, glands are retroperitonal structures located superior to each kidney. They are separated from the superior surface of the kidneys by perinol fat and are enclosed, along with the kidneys by renal fascia, geritis fascia. The right adrenal gland is located just posterior to the IVC. Medial to the posterior segment of the right hepatic lobe and lateral to the right crews of the diaphragm. It is generally lower and more medial than the left adrenal gland and commonly appears as an inverted V in cross-section. The left adrenal gland lies anterior to the upper pole of the left kidney. It is located in a triangle formed by the aorta, pancreatic tail and left kidney. It commonly appears as a triangular or Y-shaped configuration. The posterior surfaces of both the right and left glands board of the crews of the diaphragm. The right side of the diaphragm is located in a triangle formed by the diaphragm. The right side of the diaphragm is located in a triangle formed by the diaphragm. Each adrenal gland has an outer cortex and an inner mediala, which function independently. The adrenal cortex produces more than two dozen steroids. Collectively called adrenochortical steroids or just corticosteroids. The corticosteroids are broken into three main categories, glucocorticoids, which affect glucose metabolism. Minerala corticoids, which regulate sodium and potassium levels, and androgens and estrogens, which are responsible for promoting normal development of bone and reproductive organs. The adrenal metal that produces the hormones epinephrine and norpinaphrin, which accelerate metabolism and increase energy and are responsible for the body's fight or flight response. The adrenal glands receive arterial blood from the superior, middle, and inferior subarinal arteries. The drainage of the right gland is via a short subarinal vein that empties directly into the IVC. The left gland is drained by the left subarinal vein, which empties into the left renal vein. The right gland is drained by the left subarinal vein that empties the right organ. The right gland is drained by the left subarinal vein that empties the right organ.