survey of variations of coronary arteries of 463 cases

survey of anatomic variations of coronary arteries is the most fundamental of researches in the field of these vessels. for performing this survey, coronary arteries (ca's) of 463 human heart cases (gathered from three different surces: 1) legal medicine center corpses, 2) cadavers of dissection rooms in medical schools, and 3) ca's angiographic films from hospital centers) were studied. after comparison between the statistical results in this research and the foreign ones, similarities and differentes from this subjects were ascertained as below, that, there were relatively considerable differences between: the number of ca's (presence of 2 or 3 branches), origin of s.a. node artery, and type of main left coronary artery divisions (2 or 3 branches producing), but, in the other instances no considerable differences were observed