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Animation - Understanding Stroke

This animation describes that a stroke is a “brain attack” that occurs when the blood supply to the brain is interrupted, causing the affected brain tissue to die. This interruption of blood supply to the brain can be caused by a blood clot that breaks off and goes to the brain, or a narrowing in one of the arteries that supply blood to the brain, or in some cases bleeding in the brain. There are two types of stroke, hemorrhagic stroke and ischemic stroke. Hemorrhagic strokes are less common, and occur when a weakened blood vessel ruptures in­ or near the brain, leaking blood into the brain, and causing the brain cells to die. Ischemic strokes are the more common type of stroke, and occur when a blood vessel carrying blood to the brain becomes blocked by a blood clot, causing blood not to reach the brain. Without blood supply, the brain cells are deprived of oxygen and nutrients, and can start to die within a few minutes. Ischemic strokes can have thrombotic or embolic causes. A stroke is a medical emergency. If you or someone with you experiences any symptoms, call 9-1-1 immediately.

Slide Show - Understanding Stroke

This slide show describes that a stroke is a “brain attack” that occurs when the blood supply to the brain is interrupted, causing the affected brain tissue to die. This interruption of blood supply to the brain can be caused by a blood clot that breaks off and goes to the brain, or a narrowing in one of the arteries that supply blood to the brain, or in some cases bleeding in the brain. There are two types of stroke, hemorrhagic stroke and ischemic stroke. Hemorrhagic strokes are less common, and occur when a weakened blood vessel ruptures in­ or near the brain, leaking blood into the brain, and causing the brain cells to die. Ischemic strokes are the more common type of stroke, and occur when a blood vessel carrying blood to the brain becomes blocked by a blood clot, causing blood not to reach the brain. Without blood supply, the brain cells are deprived of oxygen and nutrients, and can start to die within a few minutes. Ischemic strokes can have thrombotic or embolic causes. A stroke is a medical emergency. If you or someone with you experiences any symptoms, call 9-1-1 immediately.