Circumflex branch of left coronary artery | |
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![]() Base and diaphragmatic surface of heart. (Circumflex branch not visible, but would be near the coronary sinus.) | |
![]() Base of ventricles exposed by removal of the atria. (Circumflex branch not visible, but bifurcation of left coronary artery visible at left.) | |
Details | |
Source | Left coronary artery |
Branches | Left atrial branch left marginal artery posterolateral artery sinuatrial nodal artery (in some people) posterior interventricular artery (in some people) |
Supplies | Posterolateral left ventricle, anterolateral papillary muscle, the sinoatrial nodal artery in 38% of people. |
Identifiers | |
Latin | ramus circumflexus arteriae coronariae sinistrae |
TA98 | A12.2.03.206 |
TA2 | 4148 |
FMA | 3895 |
Anatomical terminology |
The circumflex branch of left coronary artery (also known as the left circumflex artery or circumflex artery[citation needed]) is a branch of the left coronary artery. It winds around the left side of the heart along the atrioventricular groove (coronary sulcus). It supplies the posterolateral portion of the left ventricle.[1]
In a minority of individuals, the left circumflex artery gives rise to the posterior interventricular artery, in which cases such a heart is deemed left dominant.[1]
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