Publicação: Morfologia do seio coronário em fetos de bovinos azebuados
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2012-12-01
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The coronary sinusin fetuses ofzebu-crossedbovinesis studiedbyvasculardissectionsand radiographs. There aretwopredominant patterns offormation of thecoronary sinus: bydirect continuation of theleft azygos vein, from thegreat cardiac vein, and by theunion of thegreat cardiac veinwith theleft azygos vein. The first patternappeared in17animals,while thesecondpatternformation of thecoronary sinuswas found in13animals. Regarding sex there was nodifference between thepatterns shown.The main tributariesof the coronaryveinincattleare representedby the followingvessels: great cardiac vein, middle cardiac vein, veins of the faceof theleft ventricle andatrium, obliqueveinof left atrium.The great cardiac veinisseen asadirect continuation of theinterventricular veinparaconal. From these results, it appears thatthe standardvenousfetalbovineheartis predominantlyconfluentthe coronary sinus. Onlyasmall number ofvesselsare directlyconfluentto theright atrium ofbovine heart.
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Brazilian Journal of Veterinary Research and Animal Science, v. 49, n. 5, p. 398-403, 2012.
