The reason why a patient with a stroke occurring in the right side of the brain has paralysis on the left side of the body is because
A)The sensory and motor fibers decussate in the area of the thalamus
B)The reticular formation directs the impulses to the opposite side of the body
C)There is loss of myelin in the damaged portion of the brain
D)The stroke causes a temporary paralysis in the opposite side of the body
E)The area of brain death has extended causing paralysis in the opposite side of the body

Question

Quizplus · Accepted Answer

The sensory and motor fibers decussate (or cross over) in the area of the thalamus, meaning that the left side of the brain controls the right side of the body and vice versa. Therefore, a stroke occurring in the right side of the brain will result in paralysis on the left side of the body.

The Reason Why a Patient with a Stroke Occurring in the Right