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An ischemic stroke occurs when a blood vessel in the brain is blocked.
The brain depends on blood vessels called arteries to deliver blood to all areas of the brain, in turn supplying oxygen to the brain.
This is necessary to make the brain work normally. The brain controls your ability to speak, to see and to control your arms and legs.
If an artery gets blocked, the brain does not get the amount of blood it needs to work.
There are two main types of blockages in the brain that can cause an ischemic stroke:
- Thrombotic Stroke: This is usually caused by hardening of the arteries and the blood vessels can become narrower and eventually close shut.
- Cardio Embolic Ischemic Strokes: This is a caused a by a blood clot which floats up in the brain and causes a blockage.
In both types of ischemic stroke, it is most important to call 911 immediately so a patient can be treated as quickly as possible.