part_of part of part of bounding layer of contributes to morphology of Homo sapiens kidney capsule https://upload.wikimedia.org/wikipedia/commons/6/69/Illu_kidney.jpg The renal capsule relates to the other layers in the following order (moving from innermost to outermost): renal medulla renal cortex renal capsule perinephric fat (or 'perirenal fat') renal fascia paranephric fat (or 'pararenal fat') peritoneum (anteriorly), and transversalis fascia (posteriorly).[Wikipedia:Kidney_capsule] provides some protection from trauma and damage. kidney abdomen connective tissue fibrous connective tissue