Anatomy - LAD |
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Occasionally, a third branch called Ramus intermedius (Int) may arise between the LAD and the RCx. The LAD courses over the anterior aspect of the heart through the anterior interventricular sulcus (AIVS), an anterior groove in between the right and left ventricles. The LAD gives off several branches called diagonal branches. These branches course diagonally on the anterolateral portion of the left ventricle. The first diagonal branch is designated as D1; the second diagonal branch is designated as D2; and so on. The first diagonal branch is used as an anatomic landmark in designating the different segments of the LAD.
As the LAD courses through the anterior interventricular sulcus it gives off several branches called septal perforators (SP), which supply blood to the interventricular septum. |
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