Download this presentation       Paper in review process by the International Journal of Morphology. Received may 4th/2009   The present study was performed  in 51 hearts of human fetus. In 8 cases (15.7%) was founded a variation of aortic arch with 4 branches. Previous report of aortic arch with 4 branches showed 11 % of that variation in a group of 100 adults human hearts * This…