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Related to atrioventricular sulcus: atrioventricular groove, Coronary groove
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The sulcal branch passed to the left in the posterior atrioventricular sulcus and might anastomose with the sulcal branch of the circumflex artery (CX).
After origin, it continued in the left anterior atrioventricular sulcus to reach the obtuse margin of the heart (Fig.
The right inferior ostium was the origin of the right coronary artery, which alone had a normal course, coursing in the right atrioventricular sulcus and terminating in the posterior descending artery.
It is located anterolateral^ and lies in the left atrioventricular sulcus, superior to the proximal portion of the left circumflex artery (1).
The left anterior descending artery (LAD) was observed to proceed between the pulmonary and aortic trunci and reached the anterior atrioventricular sulcus (Fig.
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