The list goes on. Steroids didn't make it to baseball's banned substance list until 1991, and testing for major league players did not begin until the 2003 season, but the MLB has clearly decided that steroid use will no longer be tolerated.
The aorta (/eÉªËÉrtÉ/) is the main artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries).The aorta distributes oxygenated blood to all parts of the body through the systemic circulation.ne way of classifying a part of the aorta is by anatomical compartment, where the thoracic aorta (or thoracic portion of the aorta) runs from the heart to the diaphragm. The aorta then continues downward as the abdominal aorta (or abdominal portion of the aorta) diaphragm to the aortic bifurcation.
Before discussing about this topic of enlarged aorta, letâs tackle first the aortaâs main function in our body. Aorta is the largest artery in the heart. The function of the aorta carries oxygenated blood from the heart passing through the left ventricle, passing the chest, to the belly or abdomen and the pelvis. Atherosclerosis â it is known as the hardening of the arteries of the heart. 2  This is the most common cause of enlarged aorta for it will damage mainly the arteries. 3  Injury â sudden force applied which can damage the arteries in specified body parts like the chest and abdomen such as a vehicle accident.