The electrical coupling of sodium and potassium movements across muscle fire membrane.
D000818:Animals; D001001:Anura; D004594:Electrophysiology; D066298:In Vitro Techniques; D009132:Muscles / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism
D012964:Sodium; D011188:Potassium