Öz
Since there is no literature focused on the macro and micro structrure of the heart of the wild pig fetuses, this study aimed to contribute to the lack of information in this area. In this study, 7 hearts which belongs to the 80 days old fetuses of the wild pigs were used after fixation. After dissection and photographing, Crossmans modified triple staining technique was applied on the sections taken. The right atrioventricular valves possessed septal, angular, and parietal; while the left atrioventricular valves composed septal and parietal cusps. In the right ventricle, there was one posterior papillary muscle on the outer wall, one anterior papillary muscle and 1-2 septal papillary muscles on the septal wall. In the parietal wall of the left ventricle, there was one subauricular papillary muscle and one subatrial papillary muscle. Even the septomarginal trabecula was seen in all right ventricules examined, the left ventricles possessed any. There were17-24 in the right and 15-20 tendinous chords in the left ventricle. In the sections taken along the atrioventricular line, subendocardial purkinje cells were seen at the parietal wall of the left ventricle. In the long axis sections of the heart, there were purkinje cell aggregates and atrioventricular bundle at the subendocard of the septal wall of the left ventricle. Besides, periarterial purkinje cells were seen at the sections of the parietal wall of the right ventricle. It was determined that all the structures were formed at the hearts of 80 days old fetuses of the wild pig.