Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...

Fibromuscular dysplasia (FMD) is a rare vascular disease that causes extra cells to grow within the walls of a person’s arteries. This can cause the arteries to narrow and may cause them to tear. FMD ...