Which of the following pathological conditions is due to the loss of the myelin insulation around a nerve?
a. cerebral palsy
b. multiple sclerosis
c. myasthenia gravis
d. shingles
b
Explanation:
a. cerebral palsy: nonprogressive brain damage resulting from a defect in fetal development or trauma or oxygen deprivation at the time of birth
b. multiple sclerosis: correct
c. myasthenia gravis: is an autoimmune disease with severe muscular weakness and fatigue
d. shingles: is an eruption of painful blisters on the body along nerve paths
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