part_of part of part of contributes to morphology of composed primarily of kidney interstitial fibroblast kidney interstitial tissue kidney interstitium uberon FMA:70983 renal interstitium stroma of kidney SCTID:362210003 NCIT:C33459 renal interstitial tissue EMAPA:28518 UBERON:0005215 renal stroma interstitial tissue of kidney MA:0002616 The interstitial compartment of the kidney, comprising the extravascular intertubular spaces of the renal parenchyma, with their attendant cellular elements and extracellular substances, bounded on all sides by epithelial and vascular basement membranes.