Describe the external structure of the kidney , including its location, support structures, and covering Identify the major internal divisions and structures of the kidney Because the kidney filters blood, its network of blood vessels is an important component of its structure and function. The arteries, veins, and nerves that supply the kidney enter and exit at the renal hilum. Learn the structure of kidney with labeled diagrams, functions, and nephron details. Get NEET-ready notes and exam-focused explanations in simple steps. The upper parts of the kidneys are partially protected by the 11th and 12th ribs. Each kidney , with its adrenal gland is surrounded by two layers of fat: the perirenal fat present between renal fascia and renal capsule and pararenal fat superior to the renal fascia. The human kidney is a bean-shaped structure with a convex and a concave border ...