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.
Patients with WPW syndrome have an extra electrical pathway between the atria and the ventricles, known as an accessory pathway. This abnormal pathway directly connects the atria and ventricles at a site other than the AV node. It can be considered a small gap in the insulation between the atria and ventricles.