title: Surface membrane bound calcium is the main source of trigger calcium for excitation-contraction coupling in vertebrate skeletal muscle fibers.
mesh_terms: D000818:Animals; D001001:Anura; D001665:Binding Sites; D002021:Buffers; D002118:Calcium / Q000378:metabolism / Q000502:physiology*; D002413:Cations, Divalent / Q000494:pharmacology; D066298:In Vitro Techniques; D008566:Membranes / Q000378:metabolism; D009119:Muscle Contraction; D009132:Muscles / Q000378:metabolism*; D011188:Potassium / Q000494:pharmacology
chemical_list: D002021:Buffers; D002413:Cations, Divalent; D011188:Potassium; D002118:Calcium