Figure 3 A – block of heart with septal margin of the heart, B – section 1; cut in the anterior interventricular groove, C – section 2; cut on the lateral aspect of the septal summit with the opening of the left coronary cusp; Abbreviations: Ao – Aorta, PT – pulmonary trunk, LC left cusp of the pulmonic valve, AML – anterior mitral leaflet, VAJ – ventriculo – aortic junction, LCA – left coronary artery, LA – left atrium, FO – foramen ovale, AIV – anterior interventricular vein, LAD – left anterior descending, LCC – left coronary cusp (red lines presents virtual LCC), LFT – left fibrous trigon, EAT – epicardial adipose tissue, CV – conus vein, PVC– the posterior vein of conus; white Asterix, septal summit, yellow asterisk, left sinus of Valsalva, blue asterisk – left-right interleaflet trigon, hashtag – sinus transversus pericardii.