An aneurysm — a ballooning or bulging out of an artery where the wall is weak — can wreak havoc if it bursts. When aneurysms rupture in the brain, the resulting hemorrhage can cause stroke, coma, death, brain damage and other problems.

Forty percent of ruptured brain aneurysms are fatal, and 66 percent of survivors suffer permanent brain damage.

A better understanding of brain aneurysms, how they are treated, and whether or not you are at risk can help you safeguard your health. Start by testing your knowledge with this quiz, created with the help of Peter Rasmussen, MD, Professor of Neurological Surgery, Cleveland Clinic.

Test your knowledge here