The material making up the myelin sheath of nerve axons.
Myelin is a dielectric (electrically insulating) material that forms a layer, the myelin sheath, usually around only the axon of a neuron. It is essential for the proper functioning of the nervous system. It is an outgrowth of a type of glial cell. The production of the myelin sheath is called myelination. In humans, myelination begins in the 14th...Found on http://en.wikipedia.org/wiki/Myelin
(mi´ә-lin) the lipid substance forming a sheath (the myelin sheath) around the axons of certain nerve fibers; it is an electrical insulator that serves to speed the conduction of nerve impulses in these nerve fibers, which are called myelinated or medullated fibers. adj., myelin´ic., adj.Found on http://www.encyclo.co.uk/local/21001
(mi;ue-lin) A lipoprotein material that forms a sheathlike covering around nerve fibers.Found on http://www.mhhe.com/biosci/abio/glossary.mhtml
- a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibersFound on http://www.webdictionary.co.uk/definition.php?query=myelin
• (n.) One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers. • (n.) A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat.Found on http://thinkexist.com/dictionary/meaning/myelin/
<anatomy, neurology, pathology> The material making up the myelin sheath of nerve axons. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibersFound on http://wordnetweb.princeton.edu/perl/webwn?s=myelin
[ Greek marrow.] (Physiol. Chem.) (a)
A soft white substance constituting the medullary sheaths of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat. (b)
One of a group of phosphorized principles occurring in nerve tissue, bo...Found on http://www.encyclo.co.uk/webster/M/123
A fat-like substance wrapped around nerve fibres, acting as an insulator and assisting the rapid transmission of nerve impulses.
Found on http://www.encyclo.co.uk/local/20898
A fatty material that surrounds and insulates the axons of some neurons.Found on http://science.education.nih.gov/index.html
a white fatty substance that forms a sheath around the axons of neurons (nerve cells) and provides the insulation necessary for the proper transmission of electrical impulses.Found on http://www.encyclo.co.uk/local/22225
Compact fatty material that surrounds and insulates axons of some neurons.
Found on http://www.bbc.co.uk/radio4/reith2003/glossary.shtml
fatty insulation around an axon which improves the speed of conduction of nerve impulsesFound on http://serendip.brynmawr.edu/bb/kinser/Glossary.html
Fatty substance forming the outer tunic (myelin sheath) around many nerve axons; facilitates the conduction of nerve impulses along the axons.Found on http://www.thehorse.com/Glossary.xhtml?L=M
Greek myelos = marrow; hence, white fatty sheath of an axis cylinder; adjective - myelinated.Found on http://www.anatomy.usyd.edu.au/glossary/glossary.cgi?
Myelin is a collection of lipid fats and proteins that insulates the axons of some neurons. This insulation being known as a myelin sheath.Found on http://www.probertencyclopaedia.com/browse/EM.HTM
myelin, myeline A white fatty material, composed chiefly of lipids and lipoproteins, that encloses certain axons and nerve fibers.Found on http://www.wordinfo.info/words/index/info/view_unit/1351/
Myelin: The fatty substance that covers and protects nerves. Myelin is a layered tissue that sheathes the axons (nerve fibers). This sheath around the axon acts like a conduit in an electrical system, ensuring that messages sent by axons are not lost en route. It allows efficient conduction of action potentials down the axon. Myelin consists of 70%...Found on http://www.medterms.com/script/main/art.asp?articlekey=4477
The fat-like substance that surrounds the axon of nerve fibers and forms an insulating material.Found on http://www.aans.org/Media/Glossary-of-Terminology
the fatty covering of myelinated nerves which appears white to the naked eye. The parts of the brain and spinal cord, in which myelinated nerves run, has therefore been called the 'white' matter as distinct from the 'grey' matter composed of nerve cells. Myelin also contains about 20 % of proteins whose prime role is to mediate adhesion between adj...Found on http://www.encyclo.co.uk/local/20169
The fatty substance that covers and protects nerves.Found on http://www.cancer.gov/dictionary?expand=M
The fatty substance that covers and protects nerves. Myelin is a layered tissue that sheathes the axons. This sheath around the axon acts like a conduit in an electrical system, ensuring that messages sent by axons are not lost en route. It allows efficient conduction of action potentials down the a...Found on http://www.daviddarling.info/encyclopedia/M/myelin.html
Type: Term Pronunciation: mī′ĕ-lin Definitions: 1. The lipoproteinaceous material, composed of regularly alternating membranes of lipid lamellae (cholesterol, phospholipids, sphingolipids, and phosphatidates) and protein, of the myelin sheath. 2. Droplets of lipid formed during autolysis and postmortem decomposition. &...Found on http://www.medilexicon.com/medicaldictionary.php?t=58218
white, insulating sheath composed of fatty materials, protein, and water on the axon of many nerve fibres. The myelin sheath is deposited by Schwann ... [3 related articles]Found on http://www.britannica.com/eb/a-z/m/147
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