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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.
What are progressive destruction of myelin sheaths in the central nervous system is called?
MS
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
Which cells electrically insulate exons to increase the speed of conduction?
Oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system are responsible for electrically insulating axons by forming myelin sheaths around them. This insulation increases the speed of conduction of nerve impulses along the axons.
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 protects nerves?
the blood
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.
What is the function of oilgodendrocytes?
Oligodendrocytes are a type of glial cell in the central nervous system that primarily function to support and insulate axons by forming myelin sheaths. These myelin sheaths enhance the speed of electrical signal transmission along nerve fibers, facilitating efficient communication between neurons. Oligodendrocytes can myelinate multiple axons, contrasting with Schwann cells in the peripheral nervous system, which typically myelinate only one axon. Additionally, they play a role in maintaining the health and metabolic support of neurons.
How are nerve cells ensheathed with myelin in the CNS and the PNS?
In the central nervous system (CNS), myelin is produced by oligodendrocytes, which wrap their extensions around the axons of nerve cells. In the peripheral nervous system (PNS), myelin is produced by Schwann cells, which wrap around the axons in a spiral fashion. Myelin sheaths in both systems help to insulate and speed up the transmission of nerve impulses.
What cells Remove dead neurons and waste products from the nervous systme nourish and insulate neurons and direct their growth?
Glia cells, specifically microglia and astrocytes, remove dead neurons and waste products from the nervous system. Astrocytes also provide nourishment to neurons and insulate them. Additionally, oligodendrocytes and Schwann cells guide the growth of neurons by forming myelin sheaths around axons.
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.
What does ALD do to the white matter in the brain?
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.
