![]() ![]() Like other endocrine glands (that secrete hormones directly into the bloodstream) the adrenals receive a very rich blood supply. Each gland weighs approximately 5 grams and measures approximately 50mm vertically, 30mm across and 10mm thick (Fig. The right gland is pyramidal in shape, while the left is semilunar in shape and usually the larger of the two. They are contained within the same membrane as the kidney but separated from them by a fibrous layer of tissue. The adrenals have a high cholesterol content giving them a yellowish colour. Because of the large size of the liver above it, the right adrenal and kidney tend to lie lower than the left adrenal. The two adrenal glands (also called the suprarenal glands) are situated in the abdomen, on either side of the vertebral column, above the kidneys and below the diaphragm. ![]()
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