The largest artery in the abdominal cavity is the abdominal aorta, which emanates from the aorta, descends through the aortic arch and continues into the abdominal cavity through the aortic fissure in the septum. It all has many branches that supply the blood supply to various organs and organs in the abdomen there, and the larger arterial branches include the blood supply to the liver, spleen, stomach, mesentery, etc. It continues downward and divides into the iliac aorta, which in turn divides into the left and right sides. Therefore, when the abdominal aorta has entrapment or stenosis, a systolic blowing murmur can be heard by auscultation of the abdomen. Various abdominal surgeries, especially the more popular laparoscopic surgeries today, require a hole in the umbilicus, so it is easy to pierce the abdominal aorta downward if too much force is exerted during the hole.