BSIP DUCLOUX / SCIENCE PHOTO LIBRARY BSIP DUCLOUX / SCIENCE PHOTO LIBRARY
Multiple sclerosis. Coloured magnetic resonance imaging (MRI) scan through the spinal cord of the neck in side view, showing nerve damage caused by multiple sclerosis (MS). The patient is facing left. The spinal cord is seen with three dark patches along its length (highlighted blue). These are areas where the myelin covering of nerves has been destroyed, exposing the nerves and impairing their function in conducting signals. This means that all functions controlled by the affected nerves will deteriorate. Typical symptoms of MS include weakness, slurred speech, double vision, and even paralysis.
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