endoneurium


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Related to endoneurium: perineurium

endoneurium

(ˌɛndəʊˈnjʊərɪəm)
n
(Anatomy) the delicate connective tissue surrounding nerve fibres within a bundle
[New Latin, from endo- + neuro- + -ium]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.endoneurium - delicate connective tissue around individual nerve fibers in nerve
connective tissue - tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells; supports organs and fills spaces between them and forms tendons and ligaments
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References in periodicals archive ?
A thickening of the walls of the microvessels in the endoneurium and perineurium has been demonstrated in a few case reports of patients who had nerve segment resection.
Nerve tissue is damaged but the preserved architecture of the endoneurium may enable regeneration (6).
1) Histologically, each peripheral nerve consists of axons, Schwann cells that form myelin sheaths around some axons, endoneurium, perineurium, and epineurium.
In histology analysis, the features shown on the slide collection were observed and described, as the following structures: epineurium, perineurium and endoneurium, nerve fiber, inflammatory infiltrate, Schwann cells, fibroblasts, and blood vessels.
Electron microscopic evaluation of the resected specimens of interdigital neuroma reported edema of the endoneurium, fibrosis beneath the perineurium, axonal degeneration, and necrosis, which suggested nerve damage secondary to mechanical impingement by adjacent structures [27].
Amyloid deposits were present in the perineurium, endoneurium, and endoneurial arterioles in two patients (1 and 4), and only in a single endoneurial arterioles in one patient (2).
3) The individual axons of the nerve are surrounded by the endoneurium and subsequently bound together in fascicles by the perineurium.
The large peripheral nerves are composed of Schwann cell-axon complexes, supported and protected by 3 connective-tissue sheaths: endoneurium, perineurium, and epineurium.
Sixteen sciatic nerve transverse cuts and 8 transverse cuts of the thoracic portion of the sympathetic trunk were used, processed according to the classical histological technique, taking into account the diameter of the nerve fibers, endoneurium characteristics, number and shape of Schwann cells, using an image analyzer software.