A patient is newly diagnosed with multiple sclerosis (MS).What physiologic change is causing the patient's symptoms?
A) Depletion of dopamine in the central nervous system (CNS)
B) Demyelination of nerve fibers in the CNS
C) The development of neurofibril webs in the CNS
D) Reduced amounts of acetylcholine at the neuromuscular junction

Question

Quizplus · Accepted Answer

Multiple sclerosis is characterized by the demyelination of nerve fibers in the central nervous system, which disrupts the normal conduction of electrical impulses along the nerves, leading to the symptoms experienced by the patient.

A Patient Is Newly Diagnosed with Multiple Sclerosis (MS)