Reactivation process of calcium current-independent tonic tension in bullfrog atrium.
The time constant of reactivation process of ICa-independent tonic tension in bullfrog atrial muscle was temperature-dependent and cyanide-sensitive. The cyanide effect and the Q10 value (2.8) of the time constant of the reactivation process suggest that the tonic tension is at least partially mediated by some metabolic process.
D000818:Animals; D016275:Atrial Function; D002118:Calcium / Q000502:physiology*; D003486:Cyanides / Q000494:pharmacology; D066298:In Vitro Techniques; D009200:Myocardial Contraction / Q000187:drug effects*; D011892:Rana catesbeiana; D013696:Temperature; D013997:Time Factors
D003486:Cyanides; D002118:Calcium