The right coronary artery (RCA) arises further caudal, at the right aortic sinus. The RCA runs through the atrioventricular groove, encircling the tricuspid orifice, reciprocal to the LCX (Figure 4).
The right coronary artery supplies the inferior myocardial segments as well as the right ventricle. In a majority of cases, the right coronary artery also supplies the SA node and the AV node.
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