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What is the function of myelin?
Myelin is the material that covers the spinal cord. It protects the cord from damage. If the myelin wears away, then a person is said to have Multiple Sclerosis.
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
How does the presence of myelin help axons work?
Myelin makes it easier for acons to transmit signals- it speeds there work.
The interior of the is white due to the high concentration of myelin-sheathed axons?
Cerebrum
Describe the role of the myelin sheath?
Myelin sheath is the insulation of the CNS (central nervous system). Its helps electrical signals move along nerves. Basically, its synonymous with insulated wire. Again the insulation help the signal move in a smooth and controlled fashion through out the body.
How is myelin formed within the central nervous system?
The glial cells that surround the neurons produce myelin.
The myelin sheath that covers many CNS axons is formed by?
Oligodendrocytes
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
Formed by schwann cells in the PNS?
Schwann cells in the peripheral nervous system form myelin sheaths around axons, which helps to speed up the transmission of nerve impulses. These myelin sheaths act as insulating layers that ensure efficient communication between neurons.
What insulates nerve fibers?
Myelin insulation insulates nerve fibers by wrapping around them and forming a protective sheath. This myelin sheath helps to increase the speed of nerve impulse conduction along the nerve fibers.
What are specialized coverings of the axon?
Specialized coverings of the axon include the myelin sheath, which is formed by oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The myelin sheath acts as an insulating layer that speeds up the conduction of nerve impulses along the axon. Nodes of Ranvier are gaps in the myelin sheath where action potentials are regenerated, allowing for saltatory conduction.
What forms a myelin sheath?
The myelin sheath is formed by specialized glial cells in the nervous system. In the central nervous system (CNS), oligodendrocytes produce myelin, while in the peripheral nervous system (PNS), Schwann cells are responsible for its formation. These cells wrap around the axons of neurons in multiple layers, providing insulation that enhances the speed of electrical signal transmission. The myelin sheath is crucial for efficient communication between nerve cells.
What is the definition of myelin sheath?
A myelin sheath is a layer of myelin (a dielectric, or electric insulator) around the axon of a neuron.
What increases the speed of the transmission?
Myelin Sheath Myelin Sheath
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 insulates a axon?
Axons are insulated by a myelin sheath, which is formed by specialized cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The myelin sheath helps to increase the speed and efficiency of nerve signal transmission along the axon.
What increases the speed of impulse transmission?
Myelin Sheath Myelin Sheath
