circle of willis

A recent study by researchers from the Perelman School of Medicine at the University of Pennsylvania has shown the arteries supplying blood flow to the brain is more likely to be incomplete in people who experience migraine. The arterial supply of blood to the brain is protected by numerous connections between the major arteries which is known as the circle of Willis. Those who experience migraine and especially migraine with aura are more likely than those without migraine to be missing some components of the circle of Willis. These structural changes in the circle of Willis are something people are born with. In this study, which appeared in PLOS ONE, the researchers suggest that these structural alterations of the blood supply to the brain may increase susceptibility to changes in cerebral blood flow, which may contribute to abnormal neuronal activity … Read more