QuestionSBA
QuestionChoice
Schwann cells are responsible for the myelination of neurons in the peripheral nervous system, not the central nervous system.
10007936
b
Schwann cells
QuestionChoice
No. this is not the correct answer. Astrocytes are responsible for the regulation of nerve impulses by releasing glutamate and also contribute to the blood-brain barrier. They do not produce myelin.
10007937
c
Astrocytes
QuestionChoice
Yes, this is the correct answer. Oligodendrocytes are responsible for the myelination of axons within the central nervous system. This myelin aids neuronal connectivity by increasing the conduction velocity of action potentials. In MS, there is autoimmune degradation of the myelin, causing reduced conduction velocity of neurons and consequently a range of sensory and motor symptoms.
10007935
a
Oligodendrocytes
QuestionChoice
No, this is not the correct answer. The myelin sheath is not a cell type.
10007938
d
Myelin sheath cells
QuestionChoice
No, this is not the correct answer. Microglial cells are the immune cells of the central nervous system.
10007939
e
Microglial cells
Concept
Chapter
2693
3745
Multiple Sclerosis
Topic
141
Neurology
14134
A 35-year-old man attends neurology clinic with symptoms of diplopia and dysarthria. He has also been troubled by episodes of muscle spasms and constipation. He is diagnosed with multiple sclerosis (MS).

MS is associated with the autoimmune degradation of the neuronal myelin sheaths, which are critical for the normal functioning of the central nervous system.

Which of the following cell types are responsible for myelination of the central nervous system?
a