Maintenance of ionic composition.
D000818:Animals; D001692:Biological Transport; D002118:Calcium / Q000378:metabolism; D002462:Cell Membrane / Q000378:metabolism; D002712:Chlorides / Q000378:metabolism; D004563:Electrochemistry; D006168:Guinea Pigs; D007473:Ion Channels / Q000187:drug effects / Q000378:metabolism*; D009130:Muscle, Smooth / Q000378:metabolism*; D010042:Ouabain / Q000494:pharmacology; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism
D002712:Chlorides; D007473:Ion Channels; D010042:Ouabain; D012964:Sodium; D011188:Potassium; D002118:Calcium