Architectonics of the brown bear's left coronary artery
https://doi.org/10.52419/issn2072-2419.2023.4.306
Abstract
The heart, as the central organ of the cardiovascular system, also has its own arterial lines to supply blood to its wall. Currently, the vascularization of the heart in animals has not been sufficiently studied, there are conflicting facts from various authors of domestic and foreign origin regarding the types of blood supply to the heart in various species and breeds of domestic and wild animals, and there are also inconsistencies in the topography of the branches of the left and right coronary arteries. The brown bear is a common predator in the Russian Federation, which can often be found in various public institutions for keeping animals. The purpose of this study is to study the architectonics of the left coronary artery in a brown bear. To study the anatomy of the heart, the corpses of brown bears aged three to five years were taken. A total of six brown bear hearts were examined. To study the vascularization of the heart of the studied animals, classical and modern anatomical techniques were carried out, such as fine anatomical dissection and the production of corrosive preparations using latex. As a result of the study, it was established that the brown bear has a predominantly left coronal type of blood supply, since in four individuals the left coronary artery vascularized the area of the paraconal groove, subsinus groove and interventricular septum. But at the same time, it can also be assumed that a brown bear may have a uniform type of blood supply to the heart, due to the fact that in two individuals the subsinus groove was supplied with blood by the right coronary artery.
About the Authors
V. A. Khvatov
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Candidate of Veterinary Sciences, Associate Professor of the Department of Animal Anatomy
D. S. Bylinskaya
St. Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Candidate of Veterinary Sciences, Associate Professor of the Department of Animal Anatomy
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Review
For citations:
Khvatov V.A., Bylinskaya D.S. Architectonics of the brown bear's left coronary artery. International Journal of Veterinary Medicine. 2023;(4):306-314. (In Russ.) https://doi.org/10.52419/issn2072-2419.2023.4.306
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