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What is the difference between Schwann cells and oligodendrocytes?
1) starting with the obvious; oligodendrocytes myelinate axons in the CNS whereas schwann cells myelinate axons in the PNS 2) a single oligodendrocyte is able to myelinate multiple axons whereas a schwann cell can only myelinate a single axon. 3) schwann cell myelination allows for axonal grown and regeneration where as oligodendrocytes inhibit axonal growth and regeneration. 4).... and probably a bunch more differences
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 is the difference between the myelin in the cns versus myelin in the pns?
PNSCNSContinue along a single axonCoil around multiple axonsProduced by schwann cellsProduced by oligodendrocytesRegenerativeNon-regenerative
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 is the specialized cells that myelinate the fibers of neurons found in the peripheral nervous system?
The specialized cells that myelinate the fibers of neurons in the peripheral nervous system are called Schwann cells. Schwann cells wrap around the axons of neurons to form the myelin sheath, which helps to insulate and protect the nerve fibers, allowing for faster and more efficient conduction of nerve impulses.
What is the difference between Schwann cells and oligodendrocytes?
1) starting with the obvious; oligodendrocytes myelinate axons in the CNS whereas schwann cells myelinate axons in the PNS 2) a single oligodendrocyte is able to myelinate multiple axons whereas a schwann cell can only myelinate a single axon. 3) schwann cell myelination allows for axonal grown and regeneration where as oligodendrocytes inhibit axonal growth and regeneration. 4).... and probably a bunch more differences
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.
The myelin sheath that covers many CNS axons is formed by?
Oligodendrocytes
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.
How many axons can a single Schwann cell myelinate?
Unlike oligodendrocytes Schwann cells can only myelinate one axon. But the number of Schwann cells it takes to myelinate an axon depends on the axon length as a Schwann cell only myelinates one area between pairs of Nodes of Ranvier. Think of it like a string of sausage. the sting is the axon, each sausage is where a single Schwann cell myelinates that axon, as stated the length will determine the total number of Schwann cells needed for myelination, but a Schwann cell can only myelinate one axon.
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
What are oligodendrocytes responsible for?
myelination of the axons and the dendrites are responsible for connection between the cell body and myelin
What are the functions of oligodendrocytes?
They insulate axons by producing myelin sheathing in the neural network of some vertebrates.
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.
What type of neuroglia forms the myelin sheath?
oligodendrocytes for C.N.S. and shcwann cells for P.N.S.
Is myelination of the nerve fibers in the periphreal nervous system the job of the schwann cell?
Yes, Schwann cells are responsible for myelinating nerve fibers in the peripheral nervous system. They wrap around the axon of the neuron, creating a myelin sheath that helps to increase the speed at which nerve impulses travel along the neuron.
Which type of glial cells produces the myelin sheaths that insulate axons or nerve fibers in the central nervous system (CNS)?
myelin sheath
