The circle of Willis is a junction of several important arteries at the bottom part of the brain. Learn more about its anatomy, function, and more.

Of the people in the study who suffered from migraine with aura, 73% had an incomplete circle of Willis, as did 67% of people who had migraines without aura. This compared with 51% of the healthy ...

The brain and the 'Circle of Willis' are examined at autopsy. Thickening of arteries due to atherosclerosis, bursting of aneurysm and haemorrhage of brain are seen at autopsy.