Question

why does a person experience stroke effects on the opposite side of the body as to...

why does a person experience stroke effects on the opposite side of the body as to where the stroke occurred in the brain?

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Answer #1

Answer

  • The information in the brain is processed contralaterally.
  • Each hemisphere of the brain controls opposite side of body parts.
  • This means, left side of the brain process information for right side of the body AND right side of the brain process information for left side of the body.
  • Stroke is diminised or disrupted supply of blood to a region of the brain.
  • Hence, if a stroke occurs on one side of the brain, movement on the other side of body are affected.
    Example : If there is diminished blood supply to right hemisphere, functions such as muscle movement, sensation of left side of the body are affected.
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