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What are progressive destruction of myelin sheaths in the central nervous system is called?
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∙ 12y ago
MS
Wiki User
∙ 12y ago
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Where are myelin sheaths located?
Myelin sheaths are located around the nerve cells. In central as well as peripheral nervous system.
Does oligodendrocytes serve the same purpose in the central nervous and periphial nervous system?
No, they form myelin sheaths on axons in the CNS while schwann cells form myelin sheaths in the PNS. Hope this answers your question.
What is caused by the destruction of CNS myelin sheaths and the formation of hardened scars?
The destruction of CNS myelin sheaths and the formation of hardened scars are characteristic features of multiple sclerosis (MS). MS is an autoimmune disease where the immune system mistakenly attacks the protective covering of nerve fibers in the central nervous system. This can lead to a wide range of symptoms, including muscle weakness, coordination difficulties, and cognitive problems.
Which neuroglial cell is responsible for the production of myelin sheaths around axons in the central nervous system?
Oligodendrocyte; processes of the oligodendrocytes form the myelin sheaths around the CNS nerve fibers
How do nerve axons enhance speed of nerve impulse transmission?
By being wrapped in myelin sheaths, produced by Schawann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.
The brain and the spinal cord together make up what is known as the?
The brain and spinal cord are the two components of the Central Nervous System, and the CNS is composed of mostly neurons, with oligodendrocytes to provide myelin sheaths, microglia as immune cells, and astrocytes for general support. Other cell types (ependymal cells, radial glia) also exist in isolated locations.
An autoimmune disease which results in the destruction of myelin sheaths is called?
Multiple Sclerosis
Does a nervous breakdown affect the myelin sheaths?
No. It does not. It can not. It neither affect the neurons also.
How does the degereration of the myelin sheaths on cells in the white matter of the central nervous system result in the impaired brain functions in ALD patients?
Myelin sheaths in the central nervous system do the same basic job as they do in the peripheral nervous system. They insulate the axons, which are the conducting parts of nerve cells, so that they can carry their signal better. When this protective mechanism is damaged, as in ALD, the nerve cells cannot communicate properly and result in the signs and symptoms of ALD. Unfortunately this genetic disorder not usually caught in its early stages to provide effective treatment.
Why multiplesclerosis doesn't affect peripheral nervous system eventhough they also have myelin?
The interaction of the destruction of the myelin sheaths and remyelination is not yet fully understood. The lesions and scarring of the nerve tissue seem to mainly occur in the CNS, with the autoimmune process largely ignoring the peripheral nervous system.
What types of nervous cells are in the spinal nodes?
The perikaryon (cell body) is the neuron central part, to other neurons or directly to muscles or glands. These sheaths are composed of cell membranes from Schwann cells.
Which type of glial cells produces the myelin sheaths that insulate axons or nerve fibers in the central nervous system (CNS)?
myelin sheath
