left marginal artery

(redirected from Obtuse marginal branches)

left marginal artery

[TA]
a large ventricular branch of the circumflex branch of the left coronary artery that courses along the center of the left pulmonary surface (obtuse margin) of the heart, usually to the apex.

left mar·gi·nal ar·te·ry

(left mahr'ji-năl ahr'tĕr-ē) [TA]
A large ventricular branch of the circumflex branch of the left coronary artery that courses along the center of the left pulmonary surface (obtuse margin) of the heart, usually to the apex.
Synonym(s): ramus marginalis sinister arteriae coronariae sinistrae.
References in periodicals archive ?
He underwent a coronary arterial bypass graft operation utilizing a left internal mammary artery to the left anterior descending coronary artery, vein grafts to the diagonal and first obtuse marginal branches, and a sequential vein graft to the third obtuse marginal and the posterior descending artery.
Angiograms made 4 days later at The Medical Center of Louisiana in New Orleans show complete occlusion of the left circumflex distal to 2 obtuse marginal branches (Figure 2).