ANATOMY

Detailed explanation-1: -Portions of the renal cortex extend into the spaces between adjacent pyramids to form renal columns. The cortex and medulla make up the parenchyma, or functional tissue, of the kidney. The central region of the kidney contains the renal pelvis, which is located in the renal sinus, and is continuous with the ureter.

Detailed explanation-2: -Outside the fascia is the most superficial layer – a layer of fat tissue called the paranephric fat. This layer sits posteriorly and posterolaterally to each kidney and separates it from the muscles of the abdominal wall.

Detailed explanation-3: -Renal pyramids are kidney tissues that are shaped like cones. The medulla is the inner layer that contains the pyramids and columns.

Detailed explanation-4: -renal capsule. perirenal fat. renal fascia.