
	Where results make sense

Topic: Endoneurium

In the News (Wed 15 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Laboratory 8: Peripheral Nervous System
		Distinguish the endoneurium, perineurium and epineurium of a peripheral nerve.
		The numerous nuclei present are either Schwann cells or fibroblasts of the endoneurium.
		The eosinophilic staining between nerve fibers is due to the cytoplasm of the Schwann cells and cells of the endoneurium.
	medinfo.ufl.edu /year1/histo/review/lab08.html (1002 words)

	INTRODUCTION TO PERIPHERAL NERVES (Site not responding. Last check: 2007-10-17)
		The endoneurium consists of fibroblasts with processes that disseminate through the fascicles between nerve fibers and Schwann cells.
		The collagen fibers observed in the endoneurium tend to be longitudinal and often are closely apposed to the Schwann cells.
		The capillaries in the endoneurium have tight junctions and form the blood-nerve barrier similar to the type of barrier seen within the brain.
	www.e-neurosurgery.net /peripheralnerve.htm (4253 words)

	Artículo 1
		A bundle of nerve fibers together with their endoneurium is again surrounded by connective tissue and this is refered to as a fascicle.
		The numerous fascicles of each nerve are arranged into groups of fascicles, changing their arrangement of distribution from central levels to the periphery.
		If the fascicles themselves remain fibrotic due to scarred endoneurium rather easily palpable between two finger tips one must decide if resection of the neuromatous segment and nerve grafting should be performed.
	www.revistaneurocirugia.com /web/artics/artic1/artic1.htm (1974 words)

	Series Seven: Nervous Tissue (Site not responding. Last check: 2007-10-17)
		Endoneurium begins at the outside of the axonal membrane and ends with the more dense perineurium.
		Endoneurium is loose connective tissue made up of collagen, capillaries, macrophages, fibroblasts, and extracellular fluid.
		And of course, the endoneurium sheaths and individual axons are not visible at this magnification.
	www.lib.byu.edu /~imaging/zoo/4thedition/series3_10/series_7_descriptions.htm (4009 words)

	Peripheral Nerve Histology (Site not responding. Last check: 2007-10-17)
		The next layer of connective tissue which is denser and ensheaths different bundles of nerve fibers is called perineurium (shown dense blue in the slide).
		The nerve fibers itself is stained purple/pink and is seen as a cylinder in the center of myelin which has a light orange stain.
		Slide 40 is a peripheral nerve stained with Verhoeff's van Giesson stain.
	cytochemistry.net /microanatomy/nerve/peripheral_nerve_histology.htm (355 words)

	IX. Neurology. 1. Structure of the Nervous System. Gray, Henry. 1918. Anatomy of the Human Body.
		The tubular sheath of the funiculi (perineurium) is a fine, smooth, transparent membrane, which may be easily separated, in the form of a tube, from the fibers it encloses; in structure it is made up of connective tissue, which has a distinctly lamellar arrangement.
		The nerve fibers are held together and supported within the funiculus by delicate connective tissue, called the endoneurium.
		It is continuous with septa which pass inward from the innermost layer of the perineurium, and shows a ground substance in which are imbedded fine bundles of fibrous connective tissue running for the most part longitudinally.
	www.bartleby.com /107/183.html (4306 words)

	EM: Nervous System (Site not responding. Last check: 2007-10-17)
		Starting at the center of the axon, describe the layers encountered in moving to the collagen fibrils in the endoneurium.
		Also note the longitudinal orientation of the neuro-filaments and microtobules inside the axon and the collagen in the endoneurium outside the axon.
		The endoneurium surrounding these two cells is composed of basal laminae (not readily visible) collagen and reticular fibrils.
	cats.med.uvm.edu /cats_teachingmod/histology/lectures_online/ems/nv/nv.html (1878 words)

	Problem Solving
		Each individual nerve fiber is surrounded by endoneurium and thin light blue fibers can be seen around each cylinder.
		The nerve fibers are seen as a core of pink-purple surrounded by a somewhat vacuolated myelin sheath (stained light orange-apricot).
		The peripheral nerve in slide 8 is stained with osmium tetroxide to detect the lipids in the myelin sheath.
	cellbio.utmb.edu /microanatomy/Nerve.htm (656 words)

	A&P 2 Lab page 7
		A nerve is a bundle of neuron fibers or processes wrapped in connective tissue coverings that extends to and/or from the CNS and visceral organs or structures of the body periphery (such as skeletal muscles, glands, and skin).
		Within a nerve, each fiber is surrounded by a delicate connective tissue sheath called an endoneurium, which insulates it from the other neuron processes adjacent to it.
		(The endoneurium is often mistaken for the myelin sheath; it is instead an additional sheath that surrounds the myelin sheath.) Groups of fibers are bound by a coarser connective tissue, called the perineurium, to form bundles of fibers called fascicles.
	www.northland.cc.mn.us /biology/AP2Online/Summer2004/AP2lab/7.htm (264 words)

	Local regulation of fat metabolism in peripheral nerves -- Verheijen et al. 17 (19): 2450 -- Genes and Development
		is mainly derived from expression in the endoneurium.
		Note that the protein amount of adult endoneurium and peri/epineurium fractions loaded are relative to their contribution to the protein amount of total adult nerve.
		metabolism in the endoneurium and peri/epineurium of peripheral
	www.genesdev.org /cgi/content/full/17/19/2450 (7353 words)

	PE-HAP-S11
		Sentence 11: The endoneurium surrounds each fiber, the perineurium binds groups of fibers together into fascicles, or bundles, and the epineurium covers the whole nerve.
		This is the third sentence of the second paragraph of this two-paragraph excerpt from Human Anatomy and Physiology by Joan G. Creager, and it is the eleventh sentence overall in this excerpt.
		The independent clauses are “The endoneurium surrounds each fiber,” “the perineurium binds groups of fibers together into fascicles, or bundles,” “the epineurium covers the whole nerve.” The subject-verb combinations are respectively “endoneurium surrounds,” “perineurium binds,” and “epineurium covers.”
	www.gpc.edu /~cschroen/MGF/PE/PE-HAP/PE-HAP-S11.htm (222 words)

	Neuropathology 2000: Poster Abstract (Site not responding. Last check: 2007-10-17)
		Results: Only the outer border zone of the endoneurium (below the removed perineurium) showed obvious morphological changes while the inner part the endoneurium (60-70% of the total area) appeared intact.
		The most remarkable change was the appearance of a marked minifascicle-like reaction in the border zone of the endoneurium 14 d.
		This study shows that despite the removal of peri- and epineurium, the inner part of endoneurium stays intact, probably due to the combined effect of protective endoneurial reactions and internal vascularization.
	www.nan.org.uk /2000/sessions/C12-01.shtml (353 words)

	Nerve 2
		Slide 64 is useful for studying the connective tissue (epineurium, perineurium and endoneurium) which is associated with the nerve fibers, This Mallory stain preparation stains collagen and reticular fibers blue, and nuclei, muscles and nerve axons red.
		This material is the Schwann cell with the myelin dissolved away during preparation of the tissue.
		The final level of covering is the Endoneurium which is indicated by the red arrows.
	www3.umdnj.edu /histsweb/lab8/lab8nerve2.html (318 words)

	Fisher
		Schwann cells, the inside layer of the endoneurium, surround the axon and produce myelin, external lamina and collagen.
		The Schwann cell is neural-crest derived and is positive for S100 protein, Leu7, laminin, and myelin basic protein, and negative for cytokeratin, epithelial membrane antigen (EMA), desmin and muscle actins.
		A third cell type has been identified within the endoneurium as a slender dendritic spindle cell which displays CD34 positivity, and which appears to be distinct from Schwann, perineurial or endothelial cells.
	sup.ultrakohl.com /Newsletter/May1999/pages/neuro.html (1793 words)

	KIN 216 Spring 99 Exam 3 (Site not responding. Last check: 2007-10-17)
		QUESTION: The endoneurium is composed of neural tissue.
		Endoneurium (like perineurium and epineurium, as well as endo-, peri- and epimyseum) is CONNECTIVE TISSUE.
		Endoneurium is the CT surrounding an individual neuron.
	www.msu.edu /~vaishnav/note3.html (923 words)

	Differential Expression of Gap Junction Proteins Connexin26, 32, and 43 in Normal and Crush-injured Rat Sciatic Nerves: ...
		All images were taken from the endoneurium of the 5–10-mm distal region of the injury.
		DIC (A) and confocal (B) images of a longitudinal section in a normal nerve show that Cx43 is localized in multiple layers of the perineurium and is sparsely distributed in the epineurium (arrow).
		of the nodes of Ranvier in the endoneurium in the longitudinal
	www.jhc.org /cgi/content/full/47/7/937 (5243 words)

	Mechanisms of nerve injury
		From the outside inward these are the mesoneurium, epineurium, perineurium, and endoneurium (Daniel & Terzis 1977, May 1986, Millesi & Terzis 1987, Lundborg 1988).
		Individual nerve fibers and their Schwann cells are surrounded by the endoneurium.
		Polyfascicular nerves such as the IAN with many small fascicles are better able to withstand stretch than are monofascicular or oligofascicular nerves (Sunderland 1951).
	herkules.oulu.fi /isbn9514267508/html/x424.html (727 words)

	ICP monitors
		Characterized by loss of axons and endoneurium with retained fascicles and perineurium.
		Recovery at classic rate of nerve regeneration which is 1 inch/month or 1 mm/day (proximal lesions grow at 2-3 mm/day).
		Because the endoneurium is not involved, the regenerating axonal sprouts do not have to travel through any degree of scar tissue.
	www.ucsf.edu /nreview/09.1-PeriphNerve/PNInjuries.html (3998 words)

	Folia Veterinaria 2/2000 (Site not responding. Last check: 2007-10-17)
		The expressive dilation of microvessels with various diameters, which run in the endoneurium and perineurium, is probably caused by endothelial dysfunction, reduced nerve perfusion, and by the excessive amount of NO molecules released.
		Numerous, short and thin capillaries (slightly wavy), especially in the endoneurium were also observed.
		The occurrence of fine nitrergic nerve fibres along the capillaries which run in the endoneurium and perineurium of this peripheral nerve was confirmed.
	www.uvm.sk /dept/journals/folia/2000/20000207.html (143 words)

	Figures (Site not responding. Last check: 2007-10-17)
		Peripheral nerves are composed of several fascicles of endoneurium, each enveloped by perineurium and bound together by loose connective tissue, the epineurium.
		Each fascicle of endoneurium contains up to several thousand axons.
		Blood is supplied to the endoneurium by a network of capillary-like microvessels derived from arterioles and venules in the epineurium, which in turn are branches of major limb vessels.
	www.medscape.com /content/2004/00/48/85/488543/488543_fig.html (61 words)

	Chronic inflammatory demyelinating polyneuropathy: decreased claudin-5 and relocated ZO-1 -- Kanda et al. 75 (5): 765 ...
		Endothelial cells in the epineurium (arrowheads) and in the endoneurium (arrows) were immunoreactive.
		In CIDP (B), although medium sized vessels in the epineurium were well stained (dotted arrows), immunoreactivity in the endoneurium was severely decreased.
		Staining with the anti-claudin-5 antibody in the endothelial cells of the endoneurium was significantly decreased in CIDP specimens compared with CSS and hereditary neuropathy.
	jnnp.bmjjournals.com /cgi/content/full/75/5/765 (2773 words)

	14. Nervous System
		The connective tissue within the perineural sheath is endoneurium.
		Fibroblasts secrete the Type I collagen fibers and their nuclei can be seen in the green seams of endoneurium.
		Try to find each of the structures that you found in the cross section with the Masson stain; epineurium, perineural sheath, endoneurium with capillaries and fibroblasts, myelinated axons (and nonmyelinated ones?), Schwann cell nuclei.
	neuromedia.neurobio.ucla.edu /campbell/nervous/wp.htm (4373 words)

	Chemokines and chemokine receptors in inflammatory demyelinating neuropathies: a central role for IP-10 -- Kieseier et ...
		T cells, as well as in the endoneurium.
		(H) Mononuclear cells positive for CCR-4 were detectable in the endoneurium, resembling the staining pattern in single cells obtained with an anti-CD3 antibody (L).
		cells were detectable in large numbers in the endoneurium.
	brain.oxfordjournals.org /cgi/content/full/125/4/823 (4562 words)

	[No title]
		severance of all essential structures in neuron including the axon and endoneurium ii.
		Axonotmesis is a lesion severe enough to produce degeneration of axon distal to lesion i.
		axon damaged, Schwann cells & endoneurium intact e.
	www.clt.astate.edu /slesh/UMPH12W.TXT (183 words)

	Nerve 1a
		Dark purple, crescent shaped Schwann cell nuclei can often be seen just outside of the Schwann cell sheaths.
		The spaces between individual nerve fibers are filled with a layer of loose connective tissue that constitutes the endoneurium.
		The nuclei of the fibroblasts responsible for producing this connective tissue can also be seen in the section.
	bioweb.uwlax.edu /APLab/Table_of_Contents/Lab_06/Nerve_1/Nerve_1a/nerve_1a.html (143 words)

	Real electron microscopic images of collagen fibrils in the endoneurium -- Osawa et al. 51 (5): 341 -- Journal of ...
		Real electron microscopic images of collagen fibrils in the endoneurium -- Osawa et al.
		in the appearance of a widened space in the endoneurium.
		Keywords endoneurium, collagen fibril, ultrathin frozen section, artefact, dehydration, embedding
	jmicro.oxfordjournals.org /cgi/content/abstract/51/5/341 (169 words)

	Conditional disruption of {beta}1 integrin in Schwann cells impedes interactions with axons -- Feltri et al. 156 (1): ...
		Low level endoneurial staining for ß1 is associated with vessels and perineurial cells abnormally present in the endoneurium (C; see text).
		are found within the endoneurium of mutant, but not normal nerves.
		Axonal bundles are always surrounded by a layer of perineurial cells, abnormally present in the endoneurium (arrowheads).
	www.jcb.org /cgi/content/full/156/1/199 (7366 words)

	[No title] (Site not responding. Last check: 2007-10-17)
		-tocopherol-supplemented diet induced in brain, cerebellum, sciatic endoneurium and muscle a marked and regular increase in
		-tocopherol concentration in brain, cerebellum, sciatic endoneurium and muscle, no change in
		-tocopherol concentrations in brain or cerebellum, except poorly in sciatic endoneurium.
	www.elsevier.com /cdweb/journals/00052760/articles/1256/2/000527609500019.abstract.en (124 words)

	Anatomy of a Nerve Bundle - Medical Illustration
		This medical exhibit pictures the anatomy of the a nerve bundle in an enlarged, microscopic view.
		Visible structures include the epineurium, endoneurium and perinerium.
		This graphic is intentionally left unlabeled to accommodate custom label requests.
	catalog.nucleusinc.com /generateexhibit.php?ID=5035&...&TL=16353&A=2 (196 words)

	Merriam-Webster Online
		endoneurium is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com.
		For More Information on "endoneurium" go to Britannica.com
		Get the Top 10 Search Results for "endoneurium"
	www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=endoneurium (55 words)

Try your search on: Qwika (all wikis)