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oligodendrocytes for C.N.S. and shcwann cells for P.N.S.
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∙ 11y ago
Wiki User
∙ 11y agoOligodendrocytes
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What type of cells produce the myelin sheath in the central nervous system?
Oligodendrocytes and Schwann cells both produce myelin. Oligodendrocytes produce myelin in the CNS, whereas Schwann cells produce myelin in the PNS. CNS refers to central nervous system PNS refers to peripheral nervous system
What cells make up the mylin sheath?
There are two cells that are involved in the myelin sheath. One type is found in the central nervous system (CNS) and the other is in the peripheral nervous system (PNS).These are the oligodendrocytes (CNS) and Schwann cells (PNS).
What is a type of neuroglia that acts as phagocytes for the cns?
At times only called Glial cells, the neuroglial cells are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for the brain's neurons.
What is vestibular schwannoma?
A vestibular schwannoma is a type of benign (non-cancerous) tumor that affects the eighth cranial nerve.
What is it called when the nervous systems sends white blood cells the wrong information and tell them to kill fat that is not foreign?
When the immune system attacks part of the body, rather than foreign organisms or substances, that is called an auto-immune disease. The disease of multiple sclerosis (M/S) is caused by this; the immune system attacks the myelin sheath of nerve cells. Myelin is a type of fat, needed to insulate nerve axons so that nerve messages can be transmitted successfully.
How fast does myelin sheath travel?
The speed at which your nerve impulses travels is dependent on the type of fiber. On fibers that allow the nerve to travel faster can reach speeds of over 200 miles per hour.
When current leaps across an insulating myelin sheath from node to node the type of impulse conduction is called what?
Saltatory Conduction
The main component of the myelin sheath is?
Myelin is composed of about 80% lipid and about 20% protein. Some of the proteins that make up myelin are myelin basic protein (MBP),myelin oligodendrocyte glycoprotein (MOG), and proteolipid protein (PLP). Myelin is made up primarily of a glycolipid calledgalactocerebroside. The intertwining of the hydrocarbon chains of sphingomyelin serve to strengthen the myelin sheath.There are quite a few disease (multiple sclerosis, optic neuritis, transverse myelitis..) involved in the destruction of the axon myelin sheath also known as myelin sheath.http://en.wikipedia.org/wiki/Myelin
Which type of glial cells produces the myelin sheaths that insulate axons or nerve fibers in the central nervous system (CNS)?
myelin sheath
What type of cells produce the myelin sheath in the central nervous system?
Oligodendrocytes and Schwann cells both produce myelin. Oligodendrocytes produce myelin in the CNS, whereas Schwann cells produce myelin in the PNS. CNS refers to central nervous system PNS refers to peripheral nervous system
What cells make up the mylin sheath?
There are two cells that are involved in the myelin sheath. One type is found in the central nervous system (CNS) and the other is in the peripheral nervous system (PNS).These are the oligodendrocytes (CNS) and Schwann cells (PNS).
What is a type of neuroglia that acts as phagocytes for the cns?
At times only called Glial cells, the neuroglial cells are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for the brain's neurons.
What is the type of neuroglia that is phagocytic?
microglia
Does a neuron have a coating?
Sometimes, depending on the type and function of the neuron, and when it does, it will be on the AXON of the neuron, not the whole neuron. The AXONS of grey matter in the brain do NOT have a coating, but white matter in the brain DOES, as do longer axons in the peripheral nervous system. The Myelin Sheath which coats white matter in the brain is made up of glial cells called oligodendrocytes, and the myelin sheath around peripheral nerve cells are called Schwann cells.
What is the largest and most abundant type of neuroglia?
satellite cells
How do Schwann cells and astrocytes differ?
A+ Students - myelin sheath A Schwann cell is a particular type of neuroglial cell, found only in the peripheral nervous system. Schwann cells produce the myelin sheath, which insulates the axons of bodily nerves, increasing the signal velocity.
Where do Nodes of Ranvier lie between?
They are more or less equally spaced. The size of the nodes span from 1–2 µm whereas the internodes can be up to (and occasionally even greater than)1.5 millimeters long, depending on the axon diameter and fiber type.
