BCAA consists of the amino acids leucine, isoleucine and valine. The reason these three amino acids are called BCAA is because they branch off from the other five essential amino acids, (there are a total of eight), to create their own chain. Amino acids are responsible for the formation of proteins in the body.
An aneurysm is an abnormal bulging out or ballooning of a portion of the artery, usually due to weakness of the arterial wall. The aneurysm may enlarge and rupture, often with disastrous consequences.
  Atherosclerosis describes the process by which damage to the artery wall leads to 'furring up' of the artery.   There are fatty deposits on the inner walls of the aorta, which is the largest artery of the body carrying blood away from the heart.This narrows the passageway, and can become mineralized and hardened, as in hardening of arteries, or arteriosclerosis.+ 26 others found this useful. There are fatty deposits on the inner walls of the aorta, which is the largest artery of the body carrying blood away from the heart. This narrows the passageway, and can become mineralized and hardened, as in hardening of arteries, or arteriosclerosis. + 26 others found this useful.