Frog tonic muscle fibers: extracellular calcium and excitation-contraction coupling.
D000818:Animals; D001001:Anura; D002118:Calcium / Q000378:metabolism / Q000494:pharmacology*; D004594:Electrophysiology; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects*; D009119:Muscle Contraction / Q000187:drug effects*; D009132:Muscles / Q000187:drug effects* / Q000378:metabolism / Q000502:physiology; D011188:Potassium / Q000494:pharmacology; D012964:Sodium / Q000378:metabolism
D012964:Sodium; D011188:Potassium; D002118:Calcium