. "ramus marginalis sinister arteriae coronariae sinistrae"@en . . "The left marginal artery (or obtuse marginal artery) is a branch of the circumflex artery, originating at the posterior interventricular sulcus, traveling along the left margin of heart towards the apex of the heart."@en . . "r_02" . . . "Left marginal artery"@en . "12690727" .