title: Structural organization of renal medullary circulation.
mesh_terms: D000818:Animals; D001160:Arterioles / Q000033:anatomy & histology; D002196:Capillaries / Q000033:anatomy & histology; D006801:Humans; D007679:Kidney Medulla / Q000098:blood supply*; D008322:Mammals; D012079:Renal Circulation