Abstract
Multichannel synchronous cardioelectrotopography is used to analyze the sequence of myocardial depolarization in the ventricles of the pig heart. Formation of early depolarization areas has been established in subendocardium of interventricular septum and in the base of papillary muscles of the left ventricle; of multiple foci-in the thickness of myocardial walls; of areas of late depolarization-in subepicardium of the dorsolateral side of the left ventricle. In pig heart ventricles, as compared with other ungulates (reindeer and sheep) there are revealed differences in location of areas of the early and late depolarization areas and the breakthrough of excitation wave onto subepicardium.
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Original Russian Text © A.S. Gulyaeva, I.M. Roshchevskaya, M.P. Roshchevsky, 2014, published in Zhurnal Evolyutsionnoi Biokhimii i Fiziologii, 2014, Vol. 50, No. 2, pp. 97–101.
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Gulyaeva, A.S., Roshchevskaya, I.M. & Roshchevsky, M.P. Intramural chronotopography of myocardial depolarization in the heart ventricles of the pig (Sus scrofa domesticus). J Evol Biochem Phys 50, 109–113 (2014). https://doi.org/10.1134/S0022093014020033
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DOI: https://doi.org/10.1134/S0022093014020033