A stroke is essentially a blockage of an artery. Now, that blockage can occur from something within the artery clogging it, much like a drain gets clogged, or from the artery actually bursting. In either of those conditions, blood cannot get through and then perfuse the brain.
![male in suit headshot](https://www.gnineuro.org/sites/default/files/styles/author_image/public/2019-09/doc-prof-Vez.jpg?itok=pYeRS4he)
Erol Veznedaroglu,
MD, FACS, FAANS, FAHA