Morphology of coronary sinus in bovine fetal hearts
Keywords:Heart, Cardiac vein, Anatomy, Bovine
AbstractThe coronary sinus in fetuses of zebu-crossed bovines is studied by vascular dissections and radiographs. There are two predominant patterns of formation of the coronary sinus: by direct continuation of the left azygos vein, from the great cardiac vein, and by the union of the great cardiac vein with the left azygos vein. The first pattern appeared in 17 animals, while the second pattern formation of the coronary sinus was found in 13 animals. Regarding sex there was no difference between the patterns shown. The main tributaries of the coronary vein in cattle are represented by the following vessels: great cardiac vein, middle cardiac vein, veins of the face of the left ventricle and atrium, oblique vein of left atrium.The great cardiac vein is seen as a direct continuation of the interventricular vein paraconal. From these results, it appears tha tthe standard venous fetal bovine heart is predominantly confluen tthe coronary sinus. Only a small number of vessels are directly confluent to the right atrium of bovine heart.
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