Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The sheath that is formed by a Schwann cell.
from The Century Dictionary.
- noun The delicate structureless sheath of a nerve-fiber; the primitive sheath; the sheath of Schwann.
- noun The sheath of a nerve-funieulus; the perineurium.
- noun Of the spinal cord, the pia mater.
from the GNU version of the Collaborative International Dictionary of English.
- noun The delicate outer sheath of a nerve fiber; the primitive sheath.
- noun The perineurium.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The outer
membranous covering of anerve fiber.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun thin membranous sheath around a nerve fiber
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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The Schwann's cells finally form a thin membrane called the neurilemma (nyoo'rih-lem'uh; "nerve-skin" G), which still contains the nuclei of the original Schwann's cells.
The Human Brain Asimov, Isaac 1963
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Where the neurilemma has been destroyed or where the axon is one lacking a neurilemma (as many are) regeneration is impossible.
The Human Brain Asimov, Isaac 1963
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An axon which has degenerated through injury or disease can sometimes be regenerated, provided its neurilemma has remained intact.
The Human Brain Asimov, Isaac 1963
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Surrounding the axis cylinder is a thick, whitish-looking layer, known as the _medullary sheath_, and around this is a thin covering, called the _primitive sheath_, or neurilemma.
Physiology and Hygiene for Secondary Schools Francis M. Walters
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A, a medullated nerve fiber, showing the subdivision of the medullary sheath into cylindrical sections imbricated with their ends, a nerve corpuscle with an oval nucleus is seen between the neurilemma and the medullary sheath;
A Practical Physiology Albert F. Blaisdell
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The whole is enclosed in a thin, delicate sheath, known as neurilemma.
A Practical Physiology Albert F. Blaisdell
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Around this bundle of neurones, that is around the nerve, is still another wrapping, silvery-white, called the neurilemma.
The Mind and Its Education George Herbert Betts 1901
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A nerve consists of a bundle of tubular fibers, held together by a dense areolar tissue, and inclosed in a membranous sheath -- the neurilemma.
Special Report on Diseases of the Horse Charles B. Michener 1877
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All the larger nerve-fibers lie side by side in the nerve-trunks, and are bound together by delicate connective tissue, enclosed in a sheath of the same material, termed the _neurilemma_.
The People's Common Sense Medical Adviser in Plain English or, Medicine Simplified, 54th ed., One Million, Six Hundred and Fifty Thousand Ray Vaughn Pierce 1877
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(It was Schwann who first described the neurilemma in 1839, so that it is sometimes called the "sheath of Schwann."
The Human Brain Asimov, Isaac 1963
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