great coronary (cardiac) vein (coming from the anterior side of heart) | middle cardiac vein | small cardiac vein coming from the right anterior of myocardium | together the preceding merge to become the coronary sinus, which leads into the right atrium | inferior vena cava | circumflex artery (coming from anterior left side) | posterior interventricular artery, a branch of the right coronary artery | left atrium | left pulmonary veins | |
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