THE MORPHOLOGICAL CHARACTERISTICS OF THE SINOAURICULAR AND AURICULO-VENTRICULAR NODES IN MOOSE, CATTLE, PIG, AND HUMAN HEARTS
Comparative-anatomic studies on morphometric characteristics of the heart, cardiac circulatory system (CCS), and qualitative estimation of specific volumes of CCS structural components were conducted. It was found that the histologic structure of CCS in the investigated species (moose, calf, pig, and man) differs in size, blood supply, innervation, and in the correlation of specific volumes of conducting and contracting cardiocytes of connective tissue. The original data collected on the structure of moose will help to explain functional characteristics in the moose electrocardiogram.
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