Which term identifies the layer located on the outside of the kidney?

Which term identifies the layer located on the outside of the kidney?

• A. Cortex
• B. Renal Pelvis
• C. Renal Capsule
• D. Glomerulus

Answer: (C)

The outer protective layer of the kidney is the renal capsule. This tough, fibrous coating sits directly on the kidney’s surface and acts as the primary shield against injury and infection. Outside this capsule lie the perinephric fat and the renal fascia, but the capsule itself is the kidney’s outermost covering. In contrast, the cortex is the outer portion of the kidney’s functional tissue inside the capsule, where filtration begins. The renal pelvis is the central urine-collection area inside the kidney that channels urine toward the ureter. The glomerulus is a microscopic capillary knot within a nephron, located in the cortex, not a surface layer.

The outer protective layer of the kidney is the renal capsule. This tough, fibrous coating sits directly on the kidney’s surface and acts as the primary shield against injury and infection. Outside this capsule lie the perinephric fat and the renal fascia, but the capsule itself is the kidney’s outermost covering.

In contrast, the cortex is the outer portion of the kidney’s functional tissue inside the capsule, where filtration begins. The renal pelvis is the central urine-collection area inside the kidney that channels urine toward the ureter. The glomerulus is a microscopic capillary knot within a nephron, located in the cortex, not a surface layer.