TOPOGRAPHICAL AND ANATOMICAL FEATURES OF THE STRUCTURE OF THE KIDNEY VENOUS POOLS WITH A TWO-ZONE SYSTEM OF ITS CULOUS SUPPLY WITH THE VENTRAL AND DORSAL ARTERIES FORMING THE VENTRAL AND DORSAL ZONES IN THE KIDNEYS

Abstract

The purpose of this study was to study the topographic and anatomical features of the structure of the venous pools of the kidney with a two-zone system of its blood supply by the ventral and dorsal arteries, which form the ventral and dorsal zones in the kidneys. Initially, 124 polychrome corrosive preparations of the arterial and venous system of the human kidney, digitized using a three dimensional microcomputer tomographic digital system, were studied. 88 drugs were selected (70.9%, at p≤0.05) with a dual-zone system of blood supply to the kidney; with subsequent isolation of kidney preparations, in which the main renal artery (I) dichotomously divides relative to the frontal plane into the ventral and dorsal arteries of the II order, supplying the ventral and dorsal zones of the kidney (74 cases out of 124 - 59.7%, at p≤0, 05). During the study, topographic and anatomical features of local blood supply
and venous drainage were established in the dichotomous variant of the division of the main renal artery (I) into the ventral and dorsal arteries of the second order. It was revealed that the structure of the arterial and venous basins depends on the type of intraorgan branching of arteries of various orders; allocate loose and main types. In addition, arteries and veins with different anatomical variants differ in quantitative and topographic features. It has been established that the venous drainage system has a similar structure to the arterial bed, but differs in that there is no clear formation of isolated zones of venous outflow. 11 variants of venous outflow from the ventral and dorsal half of the kidney were identified, differing in the type of fusion of the interlobar veins and the course of the veins of the second order, as well as in the area of venous drainage (51.8% of cases were established in total, at p≤0.05).