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Neuroscience
 

Spot a Stroke FAST

What is a Stroke?

What is a Stroke?


A stroke or "brain attack" occurs when part of the brain is temporarily deprived of oxygen-rich blood. This happens when a blood clot blocks a blood vessel or artery, or a blood vessel breaks, interrupting blood flow to an area of the brain. When a stroke occurs, it kills brain cells in the area surrounding the clot or breakage.
 

There are 2 types of stroke:

Ischemic strokes account for approximately 87 percent of strokes and can occur two ways:

  • Embolic: Clot travels to the brain from another part of the body
  • Thrombotic: Clot develops in an artery

Hemorrhagic strokes occur when a blood vessel in the brain breaks or ruptures.  While hemorrhagic stroke is less common, it’s more deadly.



 
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