title: On the "tightness" of the rabbit descending limb of the loop of Henle--physiological and morphological evidence.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000648:ultrastructure; D005614:Freeze Fracturing; D007679:Kidney Medulla / Q000502:physiology; D007684:Kidney Tubules / Q000502:physiology*; D008138:Loop of Henle / Q000502:physiology* / Q000648:ultrastructure; D008722:Methods; D009994:Osmolar Concentration; D010477:Perfusion; D011817:Rabbits; D012964:Sodium / Q000378:metabolism
chemical_list: D012964:Sodium