<prompt> If the circumflex aery gives off the posterior interventricular aery, then the aerial supply is calledRight dominanceLeft dominanceBalanced dominanceCodominance  <response>: If the circumflex aery gives off the posterior interventricular aery, then the aerial supply is called left dominance. In 65 of the population, the posterior interventricular aery PIVA is a branch of right coronary aery and this is called the right dominance. In 10 of the population, PIVA is given by the circumflex aery a branch of the left coronary aery and this is called the left dominance. Ref: Gray;s Anatomy 41st edition Pgno: 1019 