Human arteries play distinct roles in the immune system depending on their anatomical location, researchers at Emory University School of Medicine have discovered. Their findings explain why vascular diseases affect different parts of the arterial network and could help doctors fine-tune the treatment of such diseases as atherosclerosis and vasculitis. Atherosclerosis causes heart attacks and strokes because it occurs preferentially in arteries supplying the heart and the brain. (Source: Cardiovascular / Cardiology News From Medical News Today)
Original source: http://www.medicalnewstoday.com/articles/120334.php