Study Guide – Pathophysiology Exam 4 1. You should know the renal anatomy, in particular the functional unit of the kidney Structures of the Kidney  Retroperitoneal o Renal Capsule – Tightly adhering capsule that surrounds each kidney embedded in a mass of perirenal fat o Renal Fascia – Covers the Renal Capsule and fatty layer, composed of fibrous tissue o Hilum – Medial indentation of the kidney and is the location of entry and exit for Renal Blood Vessels / Nerves / Lymphati...