Compact fatty material that surrounds and insulates the axons of some neurons and accelerates the transmission of electrical signals.
Found on
http://www.brainfacts.org/glossary
(from the article `muscle disease`) Peripheral neuropathy also can be caused by degeneration of the myelin sheaths, the insulation around the axons. These are termed demyelinating ... ...connects it with other neurons or with muscle or gland cells. Some axons may be quite long, reaching, for example, from the spinal cord down to a ... ...
Found on
http://www.britannica.com/eb/a-z/m/147
<anatomy, neurology> An insulating layer surrounding vertebrate peripheral neurons, that dramatically increases the speed of conduction. It is formed by specialised Schwann cells, that can wrap around neurons up to 50 times. The exposed areas are called nodes of Ranvier: they contain very high densities of sodium channels and action potential...
Found on
http://www.encyclo.co.uk/local/20973
the sheath surrounding the axon of a myelinated nerve cell, consisting of concentric layers of myelin. In the peripheral nervous system it is formed by the plasma membrane of Schwann cells, and in the central nervous system it is formed by the plasma membrane of oligodendrocytes. It is interrupted at intervals along the length of the...
Found on
http://www.encyclo.co.uk/local/21001
An insulating layer surrounding vertebrate peripheral neurons, that dramatically increases the speed of conduction. It is formed by specialized Schwann cells, that can wrap around neurons up to 50 times. The exposed areas are called nodes of Ranvier: they contain very high densities of sodium channels, and action potentials jump from one node to the next, without involving the intermediate axon, a process known as saltatory conduction.
...
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Protects axons. Damage to the myelin sheath that runs up inside our spinal cord is linked to Multiple Sclerosis. Neural transmission up and down the spine is made more difficult because of this damage, and made worse by the inner bone of our spine. This rubs against the 'hole', making transmissions to and from the brain to various parts of the body...
Found on
http://www.gerardkeegan.co.uk/glossary/gloss_a.htm
Type: Term Definitions: 1. the lipoproteinaceous envelope in vertebrates surrounding most axons larger than 0.5-mcm diameter; it consists of a double plasma membrane wound tightly around the axon in a variable number of turns and supplied by oligodendroglia cells (in the brain and spinal cord) or Schwann cells (in peripheral nerves); unwound, the d...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=81439
A sheath surrounding axons formed by successive wrappings of a neuroglial cell membrane. Myelin sheaths are formed by neurolemmocytes in the peripheral nervous system and by oligodendrocytes within the central nervous system.
Found on
http://www.mhhe.com/biosci/abio/glossary.mhtml
The myelin sheath is a coat of white, fatty tissue (myelin) which covers the axons of nerves of the peripheral nervous system. The white, myelinated fibres of the nerve bundles within the brain and spine account for the white matter found there. The grey matter also there is due to the inner structures of the nerve cell bodies. The myelin sheath is...
Found on
http://www.probertencyclopaedia.com/browse/EM.HTM
The pale, fatty wrapping that surrounds the axons of many neurons; it insulates the axon, functioning, in part, like the insulation around household wiring.
Found on
https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
insulating layer that surrounds the axon of some neurons and helps to promote signal propagation
Found on
https://courses.lumenlearning.com/microbiology/chapter/glossary/
the fat
Found on
https://www.encyclo.co.uk/local/20875
Insulating layer that surrounds nerve cells in vertebrate animals. It serves to speed up the passage of nerve impulses. Myelin is made up of fats and proteins and is formed from up to a hundred layers, laid down by special cells, the Schwann cells
Found on
https://www.encyclo.co.uk/local/21221
Layers of specialized glial cells, called Schwann cells, that coat the axons of many neurons.
Found on
https://www.encyclo.co.uk/local/21571
a wrapping of myelin around certain nerve axons, serving as an electrical insulator that speeds nerve impulses to muscles and other effectors. See diag. under
Found on
https://www.infoplease.com/dictionary/myelin-sheath
The fatty coating around some axons that increases the speed of neural impulse transmission.
Found on
https://www.sparknotes.com/psychology/psych101/glossary/terms/
No exact match found.
