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Schwann cells and oligodendrocytes
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∙ 11y ago
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Where are Swann cells and Satellite cells found?
Swann cell are found wrapped around axons in brain cortex. Satellite cells are found in muscles.
Which type of cell produces the myelin covering around the axon of a neuron?
In the central nervous system, neuronal axons are myelinated by oligodendrocytes. In the peripheral nervous system axons are myelinated by Schwann cells.
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.
The optic nerve is composed of axons of?
ganglion cells
What brain cells provide nutrients and insulating myelin?
Glial cells.
What cell form the insulating shealth around axons?
Schwan cells
Sheaths of what cells often enclose the axons outside the brain and spinal cord?
Schwann cells make the myelin sheath that encloses some 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.
Which type of glial cells produces the myelin sheaths that insulate axons or nerve fibers in the central nervous system (CNS)?
myelin sheath
What is the job of the oligodendrocyte?
Oligodendrocytes are a type of glial (supporting) cell in the brain that sends out cytoplasmic extensions to insulate axons in the central nervous system. This allows for greater speeds of nervous impulses between the brain and a sensory receptor or between two neurons ("brain" cells).
What cells in the peripheral nervous system that form a covering around axons?
Schwann cells wrap around the AXONS of peripheral neurons.
How is a schwann cell similar to an oligodendrocyte?
Oligodendrocytes are glial cells that function in the CNS--the brain and spine. They provide insulation (myelin sheaths) in several locations, possibly multiple neurons. Meanwhile, schwann cells are glial cells that function in the PNS--peripheral nervous system, everything outside the brain and spine. Individually, they wrap around axons of nerves, forming individual segments of myelin sheaths. They, unlike oligodendrocytes, can guide repairs to damaged axons. Damage to the nerves in the brain are not so easily remedied.
What cells are responsible for the myelination of neurons in the cns?
In the central nervous system, oligodendrocytes make the myelin sheaths around axons via cytoplasmic extensions. In the peripheral nervous system. The Schwann cells perform the same function but the entire cell wraps around a portion of the axon.
Where are myelin sheaths located?
Myelin sheaths are located around the nerve cells. In central as well as peripheral nervous system.
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 knowing as white matter that wrap themselves around some axons?
Schwann cells are known as white matter that wrap themselves around some axons.
What wraps themselves around some axons forming what is known as white matter?
Schwann Cells wrap themselves around some axons forming white matter.
