Abstract

AbstractThe isometric force development of pig urinary bladder smooth muscle strips in response to electrical stimulation and the force recovery following quick release of fully activated strips were characterized by a set of three time constants. The slowest time constant in the order of 2.2 s characterizes the intracellular calcium release in the excitation‐contraction coupling process. The second time constant was in the order of 0.45 s and could be related to cross‐bridge cycling, whereas the fastest time constant in the order of 0.032 s was ascribed to passive viscoelastic processes in the cross‐bridges.

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