metanephric capsule
http://purl.obolibrary.org/obo/UBERON_0005137
The metanephric capsule is the tough fibrous layer surrounding the metanephros, covered in a thick layer of perinephric adipose tissue. It provides some protection from trauma and damage[GO]. [ http://amigo.geneontology.org/amigo/term/GO:0072213 ]