Anatomy Cardiac dominance is determined by coronary aery A Supplying circulation to the SA node B Supplying circulation to the inferior poion of the interventricular septum C Supplying circulation to the inteatrial septum D Supplying circulation to the anterior poion of the interventricular septum π‘ Explanation Cardiac dominance is determined by coronary aery β Correct Answer: B. Supplying circulation to the inferior poion of the interventricular septum