Definition of Myelin sheath

1. Noun. A layer of myelin encasing (and insulating) the axons of medullated nerve fibers.


Definition of Myelin sheath

1. Noun. (neuroanatomy) An envelope of myelin that surrounds nerve fibres. ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Myelin Sheath

myectomy
myectopia
myek
myekin
myeks
myel-
myelaemia
myelatelia
myelencephala
myelencephalic
myelencephalon
myelencephalous
myelic
myelin
myelin protein zero
myelin sheath (current term)
myelin sheaths
myelinate
myelinated
myelinated nerve fiber
myelinates
myelinating
myelination
myelinations
myeline
myelines
myelinic
myelinisation
myelinization
myelinogenesis

Literary usage of Myelin sheath

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of Nervous and Mental Disease by Philadelphia Neurological Society, American Neurological Association, Chicago Neurological Society, New York Neurological Association (1906)
"Flechsig has shown that in the newborn the fibers from the geniculate body are the only ones in the optic radiations which have their myelin sheath. ..."

2. A Text-book of physiology: For Medical Students and Physicians by William Henry Howell (1915)
"Others have supposed that the myelin sheath serves as a source of nutrition to the inclosed axis cylinder, or as a regulator in some way of its metabolism. ..."

3. A Laboratory manual and text-book of embryology by Charles William Prentiss, Leslie Brainerd Arey (1917)
"During the fourth month an inner myelin sheath appears about many nerve fibers. This consists of a spongy ... The origin of the myelin sheath is in doubt. ..."

4. An Introduction to Neurology by Charles Judson Herrick (1922)
"The longer nerve-fibers are usually enveloped by a thick white glistening sheath of myelin, a fat-like substance. This myelin sheath, or medullary sheath, ..."

5. Anatomy, Descriptive and Applied by Henry Gray (1910)
"The myelin sheath is in turn invested by a delicate membrane ... The myelin sheath consists of a number of tubular segments demarcated by nodal ..."

6. A Text-book of the Practice of Medicine by James Meschter Anders (1903)
"... the cells of the spinal ganglion.1 A short distance from the cell the axis-cylinder is enveloped by the myelin- sheath, giving rise to the nerve-fiber, ..."

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