Dictionary of molecular biology. 2004.
myelin sheath — n a layer of myelin surrounding some nerve fibers called also medullary sheath * * * the cylindrical covering on the axons of some neurons; it consists of concentric layers of myelin, formed in the peripheral nervous system by the plasma membrane … Medical dictionary
Myelin sheath gap — Drawing of a peripheral nerve axon (labeled axis cylinder ), showing a node of Ranvier along with other features … Wikipedia
myelin sheath — noun a layer of myelin encasing (and insulating) the axons of medullated nerve fibers • Syn: ↑medullary sheath • Hypernyms: ↑sheath, ↑case • Part Holonyms: ↑medullated nerve fiber, ↑ … Useful english dictionary
myelin sheath — noun Date: 1896 a layer of myelin surrounding some nerve fibers called also medullary sheath … New Collegiate Dictionary
myelin sheath — my′elin sheath n. anat. zool. a discontinuous wrapping of myelin around certain nerve axons, serving to speed nerve impulses to muscles and other effectors • Etymology: 1895–1900 … From formal English to slang
myelin sheath — Anat. 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 neuron. [1895 1900] * * * … Universalium
myelin sheath — noun An envelope of myelin that surrounds nerve fibres … Wiktionary
myelin sheath — /maɪələn ˈʃiθ/ (say muyuhluhn sheeth) noun the layer of myelin encasing the axon of a nerve fibre, serving to insulate the nerve and to facilitate nerve impulses …
myelin sheath — A fatty material surrounding a nerve fiber … Dictionary of invertebrate zoology
myelin sheath — coating on the axons of nerve cells … English contemporary dictionary
