title: Countercurrent multiplication system without active transport in inner medulla.
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D003377:Countercurrent Distribution; D005919:Glomerular Filtration Rate; D006982:Hypertonic Solutions; D007552:Isotonic Solutions; D007668:Kidney / Q000378:metabolism / Q000502:physiology*; D007679:Kidney Medulla / Q000502:physiology; D007684:Kidney Tubules / Q000098:blood supply / Q000378:metabolism / Q000502:physiology; D008954:Models, Biological; D009997:Osmotic Pressure; D011817:Rabbits; D012964:Sodium / Q000378:metabolism*; D014508:Urea / Q000378:metabolism*
chemical_list: D006982:Hypertonic Solutions; D007552:Isotonic Solutions; D014508:Urea; D012964:Sodium