title: Electrolytes and excitable tissues.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D006801:Humans; D009417:Nerve Tissue / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*
chemical_list: D012964:Sodium; D011188:Potassium; D002118:Calcium