Right coronary artery of the heart of a newborn Yorkshire pig

Abstract

The study of the heart, as well as its blood supply, is of particular scientific interest in the field of veterinary and human morphology due to the widespread use of pigs as experimental animals in transplantology. Knowledge of the breed and age anatomical, topographic and morphometric characteristics of the coronary arteries of the heart will allow us to use the data obtained by us not only for experimental and scientific purposes, but also in veterinary practice for the prevention and treatment of pathologies of the cardiovascular system of pigs. Based on the foregoing, the purpose of our study is to study the anatomical, topographic and morphometric characteristics of the right coronary artery of the heart of newborn piglets of the Yorkshire breed at the age of one to three days.The material for the study was the corpses of newborn piglets aged one to three days, who fell after internal non-different diseases of unknown etiology. The cadaveric material was delivered to the Department of Animal Anatomy from private farms in the Leningrad Region. In total, ten corpses of newborn pigs of the Yorkshire breed were examined. The methods for the study were: fine anatomical preparation, morphometry using an Elitech electronic caliper with a division value of 0.02 mm, made in the USA and the manufacture of a corrosive preparation based on latex milk with subsequent processing sodium hydroxide. The processing of the obtained morphometric data was carried out in the Excel program.According to the results of the study, it was found that in newborn piglets of the Yorkshire breed at the age of one to three days, the right coronary artery has such main branches as the right diagonal and right subsinus arteries. The right coronary artery in the studied animals is involved in the blood supply to the wall and cavity of the right ventricle, the wall and cavity of the right atrium with its heart auricle, the interventricular septum, and also the right anterior surface of the wall of the left ventricle. It has been determined that the heart of newborn piglets of the Yorkshire breed has a uniform type of blood supply to the heart with a slight dominance of the right coronary artery over the left.