Intraorgan architectonics of hepatic veins in piglets
https://doi.org/10.52419/issn2782-6252.2022.4.152
Abstract
The liver of animals and humans is characterized by polyfunctionality. All the variety of liver functions and the intensity of their course is determined by the peculiarities of its hemodynamics. According to the morphological anatomy of the pig liver, I distinguish six lobes: the right lateral and medial, the left lateral and medial, square and caudate. The functional anatomy of the liver is based on the division of the liver into segments. In this case, the division is based on the fact that each segment has its own double blood supply, bile and lymph outflow routes. The aim of the study is to study the architectonics of the hepatic veins of newborn piglets, to give a morphometric characteristic of the branches of the intraorgan venous bed, as well as the segmental structure of the liver of piglets. The corpses of newborn piglets of the Landrace breed served as the material for the study. Vasorentgenography, fine anatomical dissection, and morphometry were chosen as research methods. The study included 15 piglets of the newborn period. During the study, it was found that four hepatic veins (right accessory, right, left and middle) flow into the caudal genital vein. Hepatic veins have complex intra-organ architectonics and take branches of the first and second order along their course. The maximum diameter is the left hepatic vein, which carries out the outflow of blood from the left lateral and medial lobes of the liver. The right hepatic vein drains blood from the right lateral and medial lobes, the middle hepatic vein drains from the square lobe, gallbladder and part of the left medial lobe. The smallest diameter is characteristic of the right accessory hepatic vein, which drains the caudate lobe.
Having studied the intra–organ architectonics of the branches of the hepatic veins, it can be concluded that the liver of piglets has eight segments - one segment each in the caudate, left medial, right medial and square lobes, two segments each in the left and right lateral lobes.
About the Authors
D. S. Bylinskaya
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
PhD of Veterinary Sciences, Docent
M. V. Shchipakin
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Dr.Habil. of Veterinary Sciences, Docent
D. V. Vasilyev
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
PhD of Veterinary Sciences, Docent
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Review
For citations:
Bylinskaya D.S., Shchipakin M.V., Vasilyev D.V. Intraorgan architectonics of hepatic veins in piglets. Legal regulation in veterinary medicine. 2022;(4):152-155. (In Russ.) https://doi.org/10.52419/issn2782-6252.2022.4.152
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