<prompt> Answer this question truthfullyWhat does the term left anterior descending artery refer to?  <response>: <reason> The LAD typically supplies 45-55 of the left ventricle LV. The LAD supplies the anterolateral myocardium, apex, and interventricular septum.The septal arteries supply the intraventricular septum. The diagonal arteries supply the antero-lateral wall of the left ventricle. 