神経鞘
WordNet
- thin membranous sheath around a nerve fiber (同)neurilemma
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/04/21 10:59:58」(JST)
[Wiki en表示]
| Neurolemma |
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Diagram of longitudinal sections of medullated nerve fibers.
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Transverse sections of medullated nerve fibers.
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| Identifiers |
| MeSH |
Neurilemma |
| Code |
TH H2.00.06.1.00002 |
Dorlands
/Elsevier |
Neurilemma |
| Anatomical terminology
[edit on Wikidata]
|
Neurolemma (also known as neurilemma[1] or sheath of Schwann (Schwann's Sheath)) is the outermost nucleated cytoplasmic layer of Schwann cells (also called neurolemmocytes) that surrounds the axon of the neuron. It forms the outermost layer of the nerve fiber in the peripheral nervous system.[2]
The neurolemma is underlain by the basal lamina (referred to as the medullary sheath in the included illustrations). In the CNS, axons are myelinated by oligodendrocytes, thus lack neurolemma. The myelin sheaths of Oligodendrocytes do not have neurolemma because excess cytoplasm is directed centrally toward the Oligodendrocyte cell body.
Neurolemma serves a protective function for peripheral nerve fibers. Damaged nerve fibers may regenerate if the perikaryon is not damaged and the neurolemma remains intact. The neurolemma forms a regeneration tube through which the growing axon reestablishes its original connection.
A neurilemoma is a tumor of the neurilemma.[3]
References
- ^ "neurilemma" at Dorland's Medical Dictionary
- ^ Elaine N. Marieb; Katja Hoehn (2007). Human Anatomy & Physiology (7th Ed.). Pearson. pp. 394–5. ISBN 0-8053-5909-5.
- ^ "neurilemoma" at Dorland's Medical Dictionary
External links
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Nervous tissue
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| CNS |
| Tissue Types |
- Grey matter
- White matter
- Projection fibers
- Association fiber
- Commissural fiber
- Lemniscus
- Funiculus
- Fasciculus
- Nerve tract
- Decussation
- Commissure
- Neuropil
- Meninges
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| Cell Types |
| Neuronal |
- Pyramidal
- Purkinje
- Granule
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| Glial |
| insulating: |
- Myelination: Oligodendrocyte
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| other |
- Astrocyte
- Ependymal cells
- Microglia
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| PNS |
| General |
- Dorsal
- Ventral
- Ramus communicans
- Autonomic ganglion (Preganglionic nerve fibers
- Postganglionic nerve fibers)
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| Connective tissues |
- Epineurium
- Perineurium
- Endoneurium
- Nerve fascicle
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| Neuroglia |
- Myelination: Schwann cell
- Neurolemma
- Myelin incisure
- Node of Ranvier
- Internodal segment
- Satellite glial cell
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Neurons/
nerve fibers |
| Parts |
| Soma |
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| Axon |
- Telodendron
- Axon terminals
- Axoplasm
- Axolemma
- Neurofibril/neurofilament
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| Dendrite |
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- Nissl body
- Dendritic spine
- Apical dendrite/Basal dendrite
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| Types |
- Bipolar
- Unipolar
- Pseudounipolar
- Multipolar
- Interneuron
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Afferent nerve fiber/
Sensory neuron |
- GSA
- GVA
- SSA
- SVA
- fibers
- Ia
- Ib or Golgi
- II or Aβ
- III or Aδ or fast pain
- IV or C or slow pain
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Efferent nerve fiber/
Motor neuron |
- GSE
- GVE
- SVE
- Upper motor neuron
- Lower motor neuron
- α motorneuron
- β motorneuron
- γ motorneuron
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| Termination |
| Synapse |
- Electrical synapse/Gap junction
- Chemical synapse
- Synaptic vesicle
- Active zone
- Postsynaptic density
- Autapse
- Ribbon synapse
- Neuromuscular junction
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| Sensory receptors |
- Meissner's corpuscle
- Merkel nerve ending
- Pacinian corpuscle
- Ruffini ending
- Muscle spindle
- Free nerve ending
- Nociceptor
- Olfactory receptor neuron
- Photoreceptor cell
- Hair cell
- Taste bud
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English Journal
- Synganglion histology in different stages of Rhipicephalus sanguineus ticks (Acari: Ixodidae).
- Roma GC, Nunes PH, Remédio RN, Camargo-Mathias MI.SourceDepartamento de Biologia, Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho", UNESP, Avenida 24 A, 1515, 13506-900, Rio Claro, São Paulo, Brazil. gislaineroma@yahoo.com.br
- Parasitology research.Parasitol Res.2012 Jun;110(6):2455-63. Epub 2012 Jan 5.
- The present study performs a morpho-histological description of the central nervous system of Rhipicephalus sanguineus ticks in order to analyze if there are differences in this tissue among larvae, nymphs, and adults. The results showed that the central nervous system in all the life stages of R. s
- PMID 22218921
- Novel distribution of cluster of differentiation 200 adhesion molecule in glial cells of the peripheral nervous system of rats and its modulation after nerve injury.
- Chang CY, Lee YH, Jiang-Shieh YF, Chien HF, Pai MH, Chen HM, Fong TH, Wu CH.SourceGraduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Neuroscience.Neuroscience.2011 Jun 2;183:32-46. Epub 2011 Mar 29.
- This study examined CD200 expression in different peripheral nerves and ganglia. Intense CD200 immunoreactivity was consistently localized in unmyelinated nerve fibers as opposed to a faint immunostaining in the myelinated nerve fibers. By light microscopy, structures resembling the node of Ranvier
- PMID 21453758
Japanese Journal
- Intraosseous Schwannoma Originating in Inferior Alveolar Nerve: A Case Report
Related Links
- 側難聴の進行が大 きいこと,dysdiadochokinesisが. 疑わ しいことか ら脳 ... あり,組 織 は Neurilemma. であつた. .... 右耳鳴 と回転性のめ. まいが出現,1時. 間 くらいでおさま つた.同 年4月. にも同様のめまいがあつた.1980年. 春,北 里大学を.
- neurilemma [no or′ə lem′ə, nyo or′-] noun the thin outer sheath covering a nerve fiber Origin of neurilemma Modern Latin altered (infl. by Classical Greek lemma, skin, peel) ; from neurilema; from Classical Greek neuron, nerve + eilēma ...
Related Pictures
★リンクテーブル★
[★]
- 英
- neurilemma
- 関
- 神経線維鞘、シュワン鞘
[★]
- 英
- neurolemma、neurilemma
- 関
- 神経鞘
[★]
神経線維鞘
- 関
- neurilemma