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Cells that produce myelin for cells outside the brain and spinal cord are the?
Schwann cells
What produce myelin in the brain and spinal cord?
Oligodendrocytes produce myelin in the brain and spinal cord. This process is known as myelination and the myelin will warp itself around the neurons.
Function of oligodendrocytes?
Form myelin in the brain and spinal cord....
Sheaths of what cells often enclose the axons outside the brain and spinal cord?
Schwann cells make the myelin sheath that encloses some axons
What protects the myelin sheath?
The myelin sheath, an insulating layer around the axon of a neuron, is mainly made up of H20 (40%); the dry mass of myelin is made up of mostly lipids (70 - 80%), and the rest is proteins (30 - 15%). There are three types of myelin protein, one of which is myelin basic protein. The lipid that mostly makes up myelin is called galactocerebroside.
Do neurotransmitters form the myelin sheath?
No, not at all. The myelin sheaths are actually made by other living cells in the nervous system known as glia. Two types of glia myelinate the nervous system: oligodendrocytes and Schwann cells. The oligodendrocytes for myelin in the central nervous system (brain and spinal cord) and the Schwann cells form myelin in the peripheral nervous system (everything outside the brain and spinal cord).
What is neuroglial cells that form the fatty myelin sheath on the neurons of the brain and spinal cord called?
Schwann cells (PNS)
What is the membrane covering the brain and spinal cord called?
The myelin sheath forms a protective layer over nerves. However, it is not present on all nerves. Retinal nerves for instance normally are devoid of myelin.
What is peridural?
The outside of the Dura Mater (a protective layer of the spinal cord and brain) of the spinal cord.
Where is the axon not insulated with myelin?
The axon is not insulated with myelin at the nodes of Ranvier. These are small gaps along the axon where the myelin sheath is absent and allow for faster propagation of action potentials by saltatory conduction.
What is located outside the brain and spinal cord?
anterior root
Why does your body produce cerebral spinal fluid and where is it found?
To cushion your brain and spinal cord and provide nutrients for the brain. It is found in the ventricular system, in the brain and spinal cord and the subarachnoid space between the pia mater and the arachnoid mater of the meninges.
