title: Developmental biology. A reversible epithelium.
mesh_terms: D000818:Animals; D001639:Bicarbonates / Q000378:metabolism; D001692:Biological Transport; D002712:Chlorides / Q000378:metabolism; D004848:Epithelium / Q000502:physiology; D006863:Hydrogen-Ion Concentration; D007684:Kidney Tubules / Q000502:physiology*; D007685:Kidney Tubules, Collecting / Q000502:physiology*
chemical_list: D001639:Bicarbonates; D002712:Chlorides