- each renal corpuscle is made up of a glomerulus and the Bowman’s capsule of a nephron. Most of the tissue surrounding the renal corpuscles is made up of proximal and distal convoluted tubules.Bundles of parallel tubules can be identified running into the cortex.enal Corpuscles of the Cortex. - each renal corpuscle is made up of a glomerulus and the Bowman’s capsule of a nephron. Most of the tissue surrounding the renal corpuscles is made up of proximal and distal convoluted tubules. Bundles of parallel tubules can be identified running into the cortex.