in left side of connected to connected to Homo sapiens heart cardiac vein coronary sinus great vein of heart http://upload.wikimedia.org/wikipedia/commons/5/57/Gray556.png https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-female/v1.3/assets/3d-vh-f-blood-vasculature.glb https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-male/v1.3/assets/3d-vh-m-blood-vasculature.glb UMLS:C0226659 The Great Cardiac Vein (left coronary vein) begins at the apex of the heart and ascends along the anterior longitudinal sulcus to the base of the ventricles. It then curves to the left in the coronary sulcus, and reaching the back of the heart, opens into the left extremity of the coronary sinus. It receives tributaries from the left atrium and from both ventricles: one, the left marginal vein, is of considerable size, and ascends along the left margin of the heart. NCIT:C12879 vena cordis magna great cardiac vein UBERON:0006958 EMAPA:37225 MA:0002131 EHDAA2:0004508 vena cardiaca magna Wikipedia:Great_cardiac_vein SCTID:277728005 FMA:4707 lateral structure