Some effects of alterations in external calcium concentration on frog skeletal muscle.
D000818:Animals; D001001:Anura; D002118:Calcium / Q000378:metabolism*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects*; D013779:Tetrodotoxin / Q000494:pharmacology
D013779:Tetrodotoxin; D002118:Calcium