oligodendrocyte
Physiology
(noun)
A type of neuroglia that provides support and insulation to axons in the central nervous system.
Biology
Examples of oligodendrocyte in the following topics:
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Glia
- Oligodendrocytes form myelin sheaths around axons in the CNS .
- One axon can be myelinated by several oligodendrocytes; one oligodendrocyte can provide myelin for multiple neurons.
- Glial cells of the (a) central nervous system include oligodendrocytes, astrocytes, ependymal cells, and microglial cells.
- Oligodendrocytes form the myelin sheath around axons.
- (a) Astrocytes and (b) oligodendrocytes are glial cells of the central nervous system.
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Neuroglia of the Central Nervous System
- Neuroglia in the CNS include astrocytes, microglial cells, ependymal cells and oligodendrocytes.
- Oligodendrocytes are cells that have fewer processes compared to astrocytes.
- Oligodendrocytes form the electrical insulation around the axons of CNS nerve cells.
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Types of Nervous Tissue
- Neuroglia in the CNS include astrocytes, microglial cells, ependymal cells and oligodendrocytes.
- Oligodendrocytes line up along the nerves and produce an insulating cover called myelin sheath.
- Their function is similar to oligodendrocytes.
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Neuroglia of the Peripheral Nervous System
- Functionally, the schwann cells are similar to oligodendrocytes of the CNS.
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Optic (II) Nerve
- As a consequence, the fibers are covered with myelin produced by oligodendrocytes, rather than Schwann cells that are found in the peripheral nervous system.
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Regeneration of Nerve Fibers
- The hostile, non-permissible growth environment is, in part, created by the migration of myelin-associated inhibitors, astrocytes, oligodendrocytes, oligodendrocyte precursors, and microglia.
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Muscle Tissues and Nervous Tissues
- Astrocytes regulate the chemical environment of the nerve cell, while oligodendrocytes insulate the axon so the electrical nerve impulse is transferred more efficiently.
- Also shown are two types of glial cells: astrocytes to regulate the chemical environment of the nerve cell, and oligodendrocytes to insulate the axon so the electrical nerve impulse is transferred more efficiently.
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Brain Tumors
- Within the brain itself, the involved cells may be neurons or glial cells (which include astrocytes, oligodendrocytes, and ependymal cells).
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Introducing the Neuron
- In the central nervous system, the glial cells that form the myelin sheath are called oligodendrocytes; in the peripheral nervous system, they are called Schwann cells.
- This neuron diagram also shows the oligodendrocyte, myelin sheath, and nodes of Ranvier.