A stroke occurring in the right hemisphere typically results in weakness on which side of the body?

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Prepare for the Galen Medical Surgical Exam 2. Utilize engaging quizzes with hints and explanations designed to enhance your learning experience and improve your exam readiness!

Multiple Choice

A stroke occurring in the right hemisphere typically results in weakness on which side of the body?

Explanation:
Motor control travels contralaterally because the corticospinal tract crosses to the opposite side in the brainstem. A stroke in the right hemisphere disrupts these motor signals to the left side of the body, producing weakness there. So the left side is affected. (If language areas are involved in many left-hemisphere strokes, you might see aphasia, but the motor weakness remains on the opposite side.)

Motor control travels contralaterally because the corticospinal tract crosses to the opposite side in the brainstem. A stroke in the right hemisphere disrupts these motor signals to the left side of the body, producing weakness there. So the left side is affected. (If language areas are involved in many left-hemisphere strokes, you might see aphasia, but the motor weakness remains on the opposite side.)

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