[Urinary concentration and dilution mechanism of the kidney].
D000818:Animals; D001692:Biological Transport; D006224:Cricetinae; D007671:Kidney Concentrating Ability; D007679:Kidney Medulla / Q000502:physiology; D007682:Kidney Pelvis / Q000502:physiology; D007684:Kidney Tubules / Q000502:physiology*; D007687:Kidney Tubules, Proximal / Q000502:physiology; D008138:Loop of Henle / Q000502:physiology; D011817:Rabbits; D051381:Rats