Testicular artery Testicular artery The testicular artery (the male gonadal artery, also called the internal spermatic arteries in older texts) is a branch of the abdominal aorta that supplies blood to the testis. It is a paired artery, with one for each of the testes. It is the male equivalent of the ovarian artery. Because the testis is found in a different location than that of its female equivalent, it has a different course than the ovarian artery. They are two slender vessels of considerable length, and arise from the front of the aorta a little below the renal arteries. Each passes
Left anterior descending artery the right aortic sinus. In 78% of cases, it reaches the apex of the heart. The LAD gives off two types of branches: "septals" and "diagonals". The artery supplies the anterolateral myocardium, apex, and interventricular septum. The LAD typically supplies 45-55% of the left ventricle (LV) and is therefore considered the most critical vessel in terms of myocardial blood supply. The "widow maker" is an alternate name for the anterior interventricular branch of the left coronary artery. The name "widow maker" may also apply to the left coronary artery or severe occlusions to that artery. This term is used because