A patient begins having problems with tiredness,weakness,and visual changes.Her diagnosis is multiple sclerosis (MS).Which is the best description of MS?
A) It is a central nervous system demyelination,possibly from an immunogenetic virus.
B) It is an inadequate supply of acetylcholine at the neurotransmitter junction as a result of an autoimmune disorder.
C) It is a depletion of dopamine in the central nervous system as a result of a virus.
D) It is a degenerative disorder of lower and upper motor neurons caused by viral-immune factors.

Question

Quizplus · Accepted Answer

MS is a disorder characterized by progressive demyelination of neurons in the central nervous system, leading to a range of symptoms including visual changes, weakness, and fatigue. The exact cause is unknown, but it is thought to be a combination of genetic and environmental factors, possibly triggered by a viral infection. The characteristic lesions in the CNS are areas of demyelination, which disrupt the transmission of nerve impulses and lead to the symptoms associated with MS.

A Patient Begins Having Problems with Tiredness,weakness,and Visual Changes