WordNet
- tell a relatively insignificant lie; "Fibbing is not acceptable, even if you dont call it lying"
- a trivial lie; "he told a fib about eating his spinach"; "how can I stop my child from telling stories?" (同)story, tale, tarradiddle, taradiddle
- a slender and greatly elongated substance capable of being spun into yarn (同)fibre
- a leatherlike material made by compressing layers of paper or cloth (同)fibre, vulcanized fiber
- any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber) (同)fibre
PrepTutorEJDIC
- (ささいな,罪のない)うそ / 軽いうそをつく
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/04/08 21:11:31」(JST)
[Wiki en表示]
| Nerve: Preganglionic fibers |
Autonomic nervous system innervation, showing the sympathetic and parasympathetic (craniosacral) systems, in red and blue, respectively
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| Latin |
neurofibrae preganglionicae |
| Gray's |
p.758 |
In the autonomic nervous system, fibers from the CNS to the ganglion are known as preganglionic fibers.
All preganglionic fibers, whether they are in the sympathetic division or in the parasympathetic division, are both cholinergic (that is, these fibers use acetylcholine as their neurotransmitter) and either unmyelinated or myelinated.
Sympathetic preganglionic fibers tend to be shorter than parasympathetic preganglionic fibers because sympathetic ganglia are often closer to the spinal cord than are the parasympathetic ganglia. Another major difference between the two ANS systems is divergence. Whereas in the parasympathetic division there is a divergence factor of roughly 1:4, in the sympathetic division there can be a divergence of up to 1:20. This is due to the number of synapses formed by the preganglionic fibers with ganglionic neurons.
See also
- Postganglionic fibers
- Nerve fiber
References
External links
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Histology: nervous tissue (TA A14, GA 9.849, TH H2.00.06, H3.11)
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| CNS |
| General |
- Grey matter
- White matter
- Projection fibers
- Association fiber
- Commissural fiber
- Lemniscus
- Funiculus
- Fasciculus
- Decussation
- Commissure
- meninges
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| Neuroglia |
| insulating: |
- Myelination: Oligodendrocyte
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| other |
- Astrocyte
- Ependymal cells
- Microglia
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| Other |
- Pyramidal
- Purkinje
- Granule
- Neuropil
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| PNS |
| General |
- Posterior
- Anterior
- 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
- Myelin sheath gap
- Internodal segment
- Satellite glial cell
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Neurons/
nerve fibers |
| Parts |
| Perikaryon |
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| Axon |
- 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 nerve |
- 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 nerve |
- 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
- 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
- Olfactory receptor neuron
- Photoreceptor cell
- Hair cell
- Taste bud
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anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
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noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
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proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
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anat (h/r/t/c/b/l/s/a)/phys (r)/devp/prot/nttr/nttm/ntrp
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noco/auto/cong/tumr, sysi/epon, injr
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UpToDate Contents
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English Journal
- A central mesencephalic reticular formation projection to medial rectus motoneurons supplying singly and multiply innervated extraocular muscle fibers.
- Bohlen MO1, Warren S2, May PJ2,3,4.
- The Journal of comparative neurology.J Comp Neurol.2017 Jun 1;525(8):2000-2018. doi: 10.1002/cne.24187. Epub 2017 Mar 14.
- PMID 28177529
- Can a simulation-based training program impact the use of evidence based routine practices at birth? Results of a hospital-based cluster randomized trial in Mexico.
- Fritz J1, Walker DM2, Cohen S3, Angeles G4, Lamadrid-Figueroa H1.
- PloS one.PLoS One.2017 Mar 20;12(3):e0172623. doi: 10.1371/journal.pone.0172623. eCollection 2017.
- PMID 28319122
- Brain-to-stomach transfer of α-synuclein via vagal preganglionic projections.
- Ulusoy A1, Phillips RJ2, Helwig M1, Klinkenberg M1, Powley TL2, Di Monte DA3.
- Acta neuropathologica.Acta Neuropathol.2017 Mar;133(3):381-393. doi: 10.1007/s00401-016-1661-y. Epub 2016 Dec 23.
- PMID 28012041
Japanese Journal
- Role of Perivascular Sympathetic Nerves and Regional Differences in the Features of Sympathetic Innervation of the Vascular System
- Tsuru Hiromichi,Tanimitsu Noriaki,Hirai Tomohisa
- The Japanese journal of pharmacology 88(1), 9-13, 2002-01-01
- … Chronic denervation of the preganglionic fiber induces an increase in NE release per pulse, indicating postganglionic neuronal supersensitivity. …
- NAID 130000078278
- Synaptic Spinules Attendant on Post-tetanic Potentiation in Cat Sympathetic Ganglion.
- KADOTA Tomoko,MIZOTE Muneaki,KADOTA Ken
- Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ ｔｈｅ Ｊａｐａｎ Ａｃａｄｅｍｙ． Ｓｅｒ． Ｂ： Ｐｈｙｓｉｃａｌ ａｎｄ Ｂｉｏｌｏｇｉｃａｌ Ｓｃｉｅｎｃｅｓ 72(3), 48-51, 1996
- … When the preganglionic nerve fiber was tetanically stimulated at 10Hz for more than 10 seconds, a post-tetanic potentiation (PTP) was electrophysiologically detected and maintained up to 30min. Concurrently with PTP, a small process, termed as synaptic spinule, was generated as a small projection standing out from the postsynaptic dendritic membrane with a straightly extended contour. …
- NAID 130000903734
Related Links
- preganglionic fiber The axon of a preganglionic neuron. See also: fiber ... Disclaimer All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
- Preganglionic fiber Preganglionic fibers Preganglionic fibers of the sympathetic system preganglionic fibres Preganglionic motor fibres preganglionic motor neuron preganglionic motor neuron preganglionic motor neuron ...
★リンクテーブル★
[★]
- 英
- preganglionic fiber, preganglionic fibers (B)
- ラ
- fibrae praeganglionares
- 関
- 節前ニューロン、節後線維
[★]
節前線維
- 関
- preganglionic fiber