Circumflex branch of left coronary artery information
Artery of heart
"Circumflex branch" redirects here. For the circumflex branch of the posterior tibial artery, see Circumflex fibular artery.
Circumflex branch of left coronary artery
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
[edit on Wikidata]
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]
^ abWilson, Alexander; Bhutta, Beenish S. (2022), "Anatomy, Thorax, Coronary Sinus", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID 32491498, retrieved 5 January 2023
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