Sinuatrial nodal artery

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Artery: Sinoatrial nodal artery
Sinoatrial node 2 low mag.jpg
Low magnification micrograph of a sinoatrial node (central on image), surrounding the sinuatrial nodal artery (on lumen in the image). H&E stain.
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Latin Ramus nodi sinuatrialis arteriae coronariae dextrae

The sinuatrial nodal artery (or sinoatrial nodal artery) is an artery of the heart which supplies the sinoatrial node, and arises from the right coronary artery in around 60% of people. In about 40% of cases, the sinoatrial artery is a branch of the left coronary artery or one of its branches.[1] The origin of the sinoatrial node artery is not related to coronary artery dominance. In contrast, the atrioventricular nodal branch is dependent on coronary artery dominance.

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  1. ^ Pejković B, Krajnc I, Anderhuber F, Kosutić D (July 2008). "Anatomical aspects of the arterial blood supply to the sinoatrial and atrioventricular nodes of the human heart". Journal of International Medical Research 36 (4): 691–8. doi:10.1177/147323000803600410. PMID 18652764. 

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