Which vein was damaged?

Great cardiac vein-to answer this question, you need to know that the anterior interventricular artery lies in the anterior interventricular sulcus. then, you need to identify the vein that also lies in the anterior interventricular sulcus. and that vein is the great cardiac vein. the anterior cardiac vein lies on the surface of the right atrium-it drains directly into the right atrium. the coronary sinus is located in the coronary (atrioventricular) sulcus-it is formed by the union of the great cardiac vein and the oblique vein of the left atrium, and it drains blood directly into the right atrium. the middle cardiac vein is located in the posterior interventricular sulcus-it accompanies the posterior interventricular artery. the small cardiac vein courses through the coronary sulcus with the right coronary artery. or just remember too bad he died, he was a great lad (use an irish accent)