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Topic: Neurilemma


  
  Nervous System - LoveToKnow 1911   (Site not responding. Last check: 2007-10-29)
Outside this white sheath the neurilemma is present in most nerves, but is lost when they are massed to form the white matter of the central nervous system and in the optic nerve.
At regular intervals the myelin is interrupted by some substance which stains deeply with silver nitrate, and these breaks are known as nodes of Ranvier.
These are formed by a nerve fibre approaching a muscle fibre and suddenly losing its myelin sheath while its neurilemma becomes continuous with the sarcolemma of the muscle fibre.
www.1911encyclopedia.org /Nervous_System   (3841 words)

  
 Klenner Protocol for MS
Myelin is a lamellated structure composed of neurilemma cell membranes.
Neurilemma cells have marked affinity for axis cylinders, apply themselves closely and seemingly engulf them.
The myelin sheath is actually part of the neurilemma plasma membrane with its lipid and protein layers.
www.townsendletter.com /Klenner/klenner3.htm   (2520 words)

  
 Nervous tissue
The axon is surrounded by the myelin sheath, which forms a whitish, non-cellular, fatty layer around the axon.
Outside the myelin sheath is a cellular layer called the neurilemma or sheath of Schwann cells.
The myelin sheath together with the neurilemma is also known as the medullary sheath.
www.botany.uwc.ac.za /sci_ed/grade10/mammal/nervous.htm   (600 words)

  
 PSM11K
When an axon is cut the neurilemma forms a regeneration tube.
This tube seems to secrete chemicals that attract the growing end of the axon and direct it towards its appropriate termination.
There is no neurilemma because each oligodendrocyte produces extensions that may myelinate up to 60 different processes.
www.accd.edu /sac/biology/ratorres/printouts/psm11k.htm   (2701 words)

  
 Introduction
The axons of the peripheral nervous system are covered by a sheath (neurilemma) composed of Schwann cells.
The neurilemma is comparable to certain neuroglia of the central nervous system.
Large diameter peripheral nerves have an additional sheath called myelin internal to the neurilemma, and are called myelinated nerves.
www3.umdnj.edu /histsweb/lab8/lab8intro.html   (518 words)

  
 PHED 200 Chapter 09 outline
The outer layer of myelin is surrounded by a neurilemma (neurilemmal sheath) made up of the cytoplasm and nuclei of the Schwann cell.
Narrow gaps in the myelin sheath between Schwann cells are called nodes of Ranvier.
Peripheral neurons are able to regenerate because of the neurilemma but the CNS axons are myelinated by oligodendrocytes thus lacking neurilemma and usually do not regenerate.
people.emich.edu /pbogle/PHED_200/outlines/chapter_09/outline.htm   (3157 words)

  
 The Neuron
It conducts impulses away from the cyton to its terminal branches, which transmit the impulses to the dendrites of the next neuron.
Large axons of the peripheral nerves are commonly enclosed in a sheath, called neurilemma, composed of Schwann cells (fig.
When dendrites receive a sufficiently strong stimulus, a short and rapid change in electrical charge, or polarity, of the neuron is triggered.
www.tpub.com /corpsman/32.htm   (466 words)

  
 Lecture 1, Genetics
The neurilemma has a protective function and may aid in nerve regeneration.
The neurilemma may contain a fatty substance called myelin.
A neurilemma is composed of many individual Schwann cells.
www.utpb.edu /scimath/kovalick/handouts-physiology/lecture4.htm   (289 words)

  
 neurilemma - OneLook Dictionary Search
Tip: Click on the first link on a line below to go directly to a page where "neurilemma" is defined.
neurilemma : The American Heritage® Dictionary of the English Language [home, info]
Neurilemma : Online Plain Text English Dictionary [home, info]
www.onelook.com /?w=neurilemma   (169 words)

  
 ANATOMY & PHYSIOLOGY I
Astrocytes provide a structural framework and their expand feet surround capillaries and nerve cells.
Oligodendrocytescontact nerve cells and form the neurilemma around axons in the CNS.
Schwann cells produce the neurilemma and myelin of peripheral axons.
members.tripod.com /~rmoskowitz/neural.html   (1491 words)

  
 Tissues
Neurons have a cell body, called the soma one axon, which can be as long as one meter; and one or more dendrites (nerve fibers).
For example, Schwann cells make up the neurilemma and myelin coats of neurons.
Astrocytes form tight webs around the capillaries in the brain.
www.webmd.com /content/Article/83/97634.htm?pagenumber=4   (383 words)

  
 Definition of villus,hair,white matter,respiratory system,sternum,membrane ...
The neurilemma is important in the regeneration of nerve tissue following injury.
medical term neurilemma define neurilemma definition of neurilemma what is the definition of the word neurilemma?
Red corpuscles are made in the bone marrow and spleen.
www.english-test.net /mcat/vocabulary/words/077/mcat-definitions.php   (1199 words)

  
 Cambridge Dictionaries Online - Cambridge University Press
We publish dictionaries for people learning English all over the world.
neurilemma was not found in the Cambridge Advanced Learner's Dictionary
Or you could try searching for 'neurilemma' on the World Wide Web:
dictionary.cambridge.org /results.asp?searchword=neurilemma   (41 words)

  
 BIO 201 Lecture Outline 12   (Site not responding. Last check: 2007-10-29)
Neurilemma- on the outside of the myelin sheath is the Schwann cell's plasma membrane with nucleus and cytoplasm
Oligodendrocyte- looks similar to the astrocyte but has smaller and shorter extensions; most common glial cell of CNS
Nerve Regeneration (Fig.12.18)- is limited/possible of PNS dendrites/axons if: the cell body is not damaged and the myelin sheath is intact via :
www.gwc.maricopa.edu /class/bio201g/lo12.html   (1688 words)

  
 Homeostatis 3
· all nerve fibres within the PNS contain a thin membrane called neurilemma – which surrounds the axon
· nerves within the brain that contain myelinated fibres and a neurilemma are called white matter
· not all nerve cells contain neurilemma and a myelin sheath – nerve cells within the brain and spinal cord are examples of this
www.clickandlearn.org /Bio/OACBio/NerveSignals.htm   (3492 words)

  
 Definition of information technology,mercury,fibrosis,rheumatic,neurilemma,immunocompetent,competitive ...
Definition of information technology, mercury, fibrosis, rheumatic, neurilemma, immunocompetent, competitive inhibition, cilium, centriole, fissure
I want to prepare for the PCAT (Pharmacy College Admission Test) to reach a high score.
Description of information technology, mercury, fibrosis, rheumatic, neurilemma, immunocompetent, competitive inhibition, cilium, centriole, fissure
www.english-test.net /pcat/vocabulary/words/113/pcat-definitions.php   (1222 words)

  
 Ultrastructural localization of Na,K-ATPase in the gerbil cochlea -- Nakazawa et al. 43 (10): 981 -- Journal of ...
neurilemma of Type I spiral ganglion neurons, even though these cells are
the neurilemma of afferent but not that of efferent nerve processes beneath
This article has been cited by other articles:
www.jhc.org /cgi/content/abstract/43/10/981   (415 words)

  
 Nerve 2
This material is the Schwann cell with the myelin dissolved away during preparation of the tissue.
If this were a silver stained preparation, external to the neurilemma (of Schwann cell and myelin) you might observe the intensely agyrophilic reticular fibers of the endoneurium which surrounds each Schwann cell [Gartner, p.
Do these fibers have a Schwann cell sheath?
www3.umdnj.edu /histsweb/lab8/lab8nerve2.html   (318 words)

  
 Neurons and Supporting Cells
Schwann cells phagocytose axon form a regeneration tube, axon on cell body grows toward correct destination.
Regeneration is limited in CNS due to discontinuous neurilemma, inhibitory molecules, and apoptosis in other neurons.
Take up glucose from blood, lactate used as energy source by neuron
www.hartnell.cc.ca.us /faculty/asteinhardt/mywebs/nerve1.htm   (788 words)

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