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  • Title: [Morphologic features of the hemo- and lymphomicrocirculatory bed of the myocardium].
    Author: Vyrenkov IuE, Soboleva EL, Beklemishev MA.
    Journal: Arkh Anat Gistol Embriol; 1981 May; 80(5):30-8. PubMed ID: 7283753.
    Abstract:
    By means of intraorganic impregnation of microvessels, it is possible to reveal simultaneously the hemo- and lymphomicrocirculatory beds in the rat and dog hearts and to analyse morphological peculiarities in all parts of the myocardial microcirculatory bed--arterioles, precapillaries, capillaries, postcapillaries, prevenules, venules. It has been demonstrated that the cardiac hemomicrocirculatory bed possesses certain structural-functional units, common for the whole microvascular bed, precapillary sphincters, metarterioles, as well as capillary "sphincters" and arteriolo-venular anastomoses. Lymphatic microvessels of the myocardium are represented by precapillaries and capillaries, the latter varying in their form. The main structural units of the myocardial lymphatic network are reservoir-like microvessels having an essential capicity; at alteration of systole and diastole they perform the role of a specific pump for smaller lymphatic capillaries. Owing to the morphological data obtained, it is possible to interprete anew the mechanisms of the myocardial lymphatic outflow.
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