Myelin

myelin
a fatty substance surrounding the axons of nerve cells in the central nervous system
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Sphingomyelin is also present in all eukaryotic cell membranes, especially the plasma membrane, and is particularly concentrated in the nervous system because sphingomyelin is a major component of myelin, ...
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Myelin Speeds Up Thought
Most neurons have a fatty outer layer called myelin, which insulates and protects the axons of neurons. In this way, myelin is like the plastic that surrounds electric wires.
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Myelinated Neurons
The axons of many neurons are encased in a fatty sheath called the myelin sheath. It is the greatly expanded plasma membrane of an accessory cell called the Schwann cell.
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myelin sheath: a fatty layer of material that covers the axons of nerve cells.
myofibrils: microscopic filaments that make up a muscle cell.
myosin: a protein microfilament that comprises the sarcomere of muscle cells.
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myelin sheath
(my-eh-lin) [Gk. myelinos, full of marrow]
In a neuron, an insulating coat of cell membrane from Schwann cells that is interrupted by nodes of Ranvier where saltatory conduction occurs.
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myelin sheath Layers of specialized glial cells, called Schwann cells, that coat the axons of many neurons.
myofibrils Striated contractile microfilaments in skeletal muscle cells. PICTURE ...
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myelin sheath - insulating layer of specialized cell membrane wrapped around vertebrate axons; produced by the oligodendrocytes in the central nervous system (CNS) ...
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myelin
a sheath of fatty substance associated with protein that surrounds larger nerve fibers of vertebrates. The sheath permits a greater current flow and thus speeds transmission of nerve impulses.
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Sphingomyelin
The backbone of sphingomyelin is sphingosine, an amino alcohol formed from palmitate and serine. The amino terminal is acylated with a by a long-chain acyl CoA to yield ceramide .
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Multiple sclerosis is a disease of the central nervous system characterized by the destruction of the myelin sheath surrounding neurons, resulting in the formation of "plaques.
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neurofibril node Regular gaps in a myelin sheath around a nerve fiber; formerly called node of Ranvier.
neurogenic Originating in nervous tissue, as does the rhythmical beat of some arthropod hearts.
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