Left marginal arteries

Left marginal artery
Base and diaphragmatic surface of heart. (Left marginal artery not visible, but would be near center left.)
ARTERIES: RCA = right coronary AB = atrial branches SANB = sinuatrial nodal RMA = right marginal LCA = left coronary CB = circumflex branch LAD/AIB = anterior interventricular LMA = left marginal PIA/PDA = posterior descending AVN = atrioventricular nodal VEINS: SCV = small cardiac ACV = anterior cardiac AIV/GCV = great cardiac MCV = middle cardiac CS = coronary sinus
Details
Source	circumflex artery
Vein	left marginal vein
Supplies	left ventricle
Identifiers
Latin	ramus marginalis sinister arteriae coronariae sinistrae
Dorlands /Elsevier	r_02/12690727
TA	A12.2.03.209
FMA	3902
Anatomical terminology []

The left marginal artery (or obtuse marginal artery) is a branch of the circumflex artery, originating at the left atrioventricular sulcus, traveling along the left margin of heart towards the apex of the heart.