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posterior interventricular artery (heart, anatomy)
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The posterior interventricular artery of the heart is a branch of the right coronary artery. It branches off on the inferior surface of the heart within the atrioventricular groove. It enters the posteroinferior aspect of the interventricular groove and heads towards the apex of the heart. During this course, it gives off multiple septal branches which perforate deeply to supply the posterior part of the interventricular septum.

Close to the apex of the heart, the posterior interventricular artery anastomoses with the anterior interventricular branch of the left coronary artery.