Aorta. The aorta is the body's largest artery (the blood vessels that carry oxygen-rich blood). Roughly the diameter of a garden hose, this artery extends from the aortic valve in the heart down through the chest and abdominal region, where it divides into a blood vessel that supplies each leg.
WolffâParkinsonâWhite syndrome (WPW) is one of several disorders of the electrical system of the heart that are commonly referred to as pre-excitation syndromes.olffâParkinsonâWhite syndrome (WPW) is one of several disorders of the electrical system of the heart that are commonly referred to as pre-excitation syndromes.
CAUSES OF WOLFF-PARKINSON-WHITE SYNDROME. 1  Conduction in WPW â In the normal heart, the atria are almost completely isolated from the ventricles electrically because they are separated by fibrous atrioventricular rings. These rings are at the level of the heart valves that separate the atria from the ventricles.