part_of part of part of capable of part of capable of part of renal water absorption renal medulla interstitial tissue renal medulla interstitium renal medullary interstitium uberon SCTID:245693005 medullary stroma Tissue surrounding the loop of Henle in the renal medulla. UBERON:0005211 It functions in renal water reabsorption by building up a high hypertonicity, which draws water out of the thin descending limb of the loop of Henle and the collecting duct system. This hypertonicity, in turn, is created by an efflux of urea from the inner medullary collecting duct. Wikipedia:Bone_marrow_of_ovaryry_interstitium medullary interstitium renal medullary interstitial tissue kidney medulla interstitium EMAPA:18326 MA:0002619 kidney interstitium