Abstract
The objective of this study was to describe the uncommon connections between cardiac veins, alternative pathways within cardiac venous circulation and complex variability of the venous system in the heart ventricles. The study was carried out on 30 adult New Zealand White rabbits. The arrangement of the cardiac veins was studied by using the corrosion casts prepared with the Spofacryl® and by perfusion of coloured latex. The presence and organization of principal veins of the heart ventricles was relatively constant with a great variability in the mode of opening and forming a common trunk. The highest variations were observed in the region of the paraconal interventricular vein, the left and right marginal vein and the left distal ventricular vein. The left proximal ventricular vein was an inconstant tributary of the left circumflex vein and was seen in 17% of cases. The left distal ventricular vein was visible as one (13% of cases) or two veins (87% of cases). Angular vein was observed in 20% of cases. Numerous anastomosis were found among cardiac veins.
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