<prompt> If circumflex aery gives the posterior interventricular branch, this circulation is described as aEURRight dominanceLeft dominanceCodominanceUndetermined  <response>: Left dominance Dominance of the coronary aerial system depends on which aery gives rise to the posterior interventricular branch posterior descending aery. This branch supplies adjacent areas of both ventricles and posterior third of the IV septum.Right dominance: In this more conzmon type the posterior interventricular aery is a brute of . coronary aery. Seen in 67 to 90 of the population 67 according to Moores 5e and 90 according to Snells 6e and BDC 4e, and some middle values on internetLeft dominance: The circumflex aery, the continuation of left coronary provides the post. IV branch Seen in 10 to 15Codominancebalanced: Branches of both right and left coronary aery run in or near the sulcus.Note that the term Right dominance is misleading, since the left aery almost always supplies a greater volume of tissue. 