Main Model
Anterior interventricular branch
The left coronary artery divides into two branches, the anterior
interventricular branch (clinicians continue to use LAD, the abbreviation for the former
term “left anterior descending” artery) and the circumflex
branch.
The anterior interventricular branch passes along the interventricular groove to the apex of the heart. Here, it turns
around the inferior border of the heart and commonly anastomoses with the
posterior interventricular branch of the right coronary artery. The anterior interventricularbranch supplies adjacent parts of both ventricles and via interventricular septal branches,
the anterior two thirds of the interventricular septum. In many people, the anteriorinterventricular branch gives rise to a lateral branch (diagonal artery), which descends on the anterior surface of the heart.