Question

The disease that can affect motor neurons in any of four areas of the motor system, including the spinal nerves, cranial nerves, upper motor neurons of corticospinal tracts, and upper motor neurons of corticobulbar tracts is:

A. multisystems atrophy

B. amyotrophic lateral sclerosis (ALS)

C. Wilsons disease

D. Friedreichs ataxia

Answer

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