Brain Aneurysm Causes, Symptoms, Diagnosis, and Treatment

What is a brain aneurysm and what causes a brain aneurysm? The brain gets its blood supply from arteries known as the Circle of Willis. It is located at the base of the brain and is a loop of arteries that join in a circle then send branches out to all parts of the brain. These arteries deliver nutrition (glucose and oxygen) to the brain cells. The junctions where these arteries come