Superior renal capsule

Noah's capsule
1. Parenchyma 2. Cortex 3. Medulla 4. Perirenal fat 5. Renal capsule 6. Ureter 7. Pelvis of kidney 8. Renal artery and Renal vein 9. Renal hilum 10. Calyx
Transverse section, showing the relations of the capsule of the kidney. (Labeled as "adipose capsule".)
Details
System	Urinary system
Latin	Capsula fibrosa renis
Dorlands /Elsevier	c_07/12211754
Anatomical terminology []

The renal capsule is a tough fibrous layer surrounding the kidney and covered in a thick layer of perinephric adipose tissue. It provides some protection from trauma and damage.

The renal capsule relates to the other layers in the following order (moving from innermost to outermost):

The perinephric fat may be regarded as a part of the renal capsule, called the adipose capsule of kidney.