Which of the following is a chronic disease of the central nervous system that involves progressive destruction of the myelin sheaths of the neurons?
A) multiple sclerosis
B) myasthenia gravis
C) Parkinson disease
D) retinopathy

Question

Quizplus · Accepted Answer

Multiple sclerosis is a chronic disease of the central nervous system that involves the progressive destruction of the myelin sheaths of the neurons. Myasthenia gravis is a neuromuscular disorder that involves weakness and fatigue of the voluntary muscles, Parkinson's disease is a neurodegenerative disorder that affects movement, and retinopathy is a disorder of the retina in the eye.

Which of the Following Is a Chronic Disease of the Central