Biopolym. Cell. 1994; 10(3-4):39-51.
Non-actomyosinic contractile mechanisms and the changes of smooth muscle vessel tissue mechanical characteristics
1Shapovalov A. N.
  1. Taras Shevchenko National University of Kyiv
    64, Volodymyrska Str., Kyiv, Ukraine, 01033

Abstract

The contribution of non-actomyosinic contractile mechanisms to thermomechanical response of rabbit aorta wall was studied. It was established, that these contractile mechanisms take part in the formation of aorta wall thermoinduced contraction. They were named "connective tissue non-mediated", "connective tissue mediated" and actomyosinic. It was shown that the extent of the muscle tissue stiffness changes during the contraction is determined by the correlation and conformities, which detine the stiffness of systems consisting of the series and parallel connected elements and by the extent of activation and inactivation of actomyosinic and non-actomyosinic contractile mechanisms. It was established that the invariability of the muscle tissue stiffness during the contraction; is the distinctive feature of it's contractile response of non-actomyosinic nature. The reological model of smooth muscle vessel tissue with two contractile systems in it was suggested.

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