節前線維
WordNet
- 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
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/03/29 10:27:36」(JST)
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| Preganglionic fibers |
|
Autonomic nervous system innervation, showing the sympathetic and parasympathetic (craniosacral) systems, in red and blue, respectively
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| Details |
| Latin |
neurofibrae preganglionicae |
| Identifiers |
| Gray's |
p.758 |
Dorlands
/Elsevier |
n_06/12568789 |
| TA |
A14.2.00.009 |
| FMA |
76568 |
| Anatomical terms of neuroanatomy |
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 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
UpToDate Contents
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English Journal
- A central mesencephalic reticular formation projection to the supraoculomotor area in macaque monkeys.
- Bohlen MO1, Warren S2, May PJ3,4,5.
- Brain structure & function.Brain Struct Funct.2016 May;221(4):2209-29. doi: 10.1007/s00429-015-1039-2. Epub 2015 Apr 10.
- The central mesencephalic reticular formation is physiologically implicated in oculomotor function and anatomically interwoven with many parts of the oculomotor system's premotor circuitry. This study in Macaca fascicularis monkeys investigates the pattern of central mesencephalic reticular formatio
- PMID 25859632
- Reduction of Small Fibers of Thoracic Ventral Roots and Neurons of Intermediolateral Nucleus in Parkinson Disease and Dementia with Lewy Bodies.
- Hatsuta H1,2,3,4, Takao M1,2,5, Nakano Y1, Nogami A1, Uchino A1, Sumikura H1, Kanemaru K2, Arai T3, Itoh Y4, Murayama S1,2.
- Journal of Parkinson's disease.J Parkinsons Dis.2016 Apr 2;6(2):325-34. doi: 10.3233/JPD-150773.
- BACKGROUND AND OBJECTIVE: Loss of intermediolateral nucleus (IML) neurons is considered to play a major role in orthostatic hypotension (OH) of multiple system atrophy (MSA). In Parkinson disease (PD) and dementia with Lewy bodies (DLB), autonomic phenomena such as OH are common and attributed to dy
- PMID 27061071
- Arginine Vasopressin Injected into the Dorsal Motor Nucleus of the Vagus Inhibits Gastric Motility in Rats.
- Zhu J1, Chang L1, Xie J1, Ai H1.
- Gastroenterology research and practice.Gastroenterol Res Pract.2016;2016:4618672. doi: 10.1155/2016/4618672. Epub 2015 Dec 30.
- Background. Until now, the effect of arginine vasopressin (AVP) in the DMV on gastric motility and the possible modulating pathway between the DMV and the gastrointestinal system remain poorly understood. Objectives. We aimed to explore the role of AVP in the DMV in regulating gastric motility and t
- PMID 26843857
Japanese Journal
- An electron microscopic study on nerve endings on adrenomedullary adrenaline cells in golden hamsters: position, size and changes due to pinealectomy
- Yamauchi Takao,Kachi Takashi
- Archives of histology and cytology 71(2), 115-122, 2008-09-01
- … Effects of sham-pinealectomy and pinealectomy on preganglionic nerve endings on adrenomedullary adrenaline cells were investigated electron microscopically. … The preganglionic nerve endings were localized mainly in the following three sites: the basal lamina part, the follicular lumen-junctional intercellular part, and the adrenaline cell-invaginated part. …
- NAID 10025095714
- GABA-containing sympathetic preganglionic neurons in rat thoracic spinal cord send their axons to the superior cervical ganglion.
- ITO Tetsufumi,HIOKI Hiroyuki,NAKAMURA Kouichi,TANAKA Yasuyo,NAKADE Hiroyuki,KANEKO Takeshi,IINO Satoshi,NOJYO Yoshiaki
- The Journal of comparative neurology 502(1), 113-125, 2007-05
- … GABA-containing fibers have been observed in the rat superior cervical ganglion (SCG) and,to a lesser extent, in the stellate ganglion (STG). … The aim of present study is to clarify the sourceof these fibers. … Thus,GABA-containing fibers in the ganglia are suggested to be of extraganglionic origin. …
- NAID 120000807637
- 分節型無汗を示した pure autonomic failure の1例
- 吉丸 公子,中里 良彦,大熊 彩,山元 敏正,田村 直俊,島津 邦男
- 自律神経 = The Autonomic nervous system 41(1), 68-72, 2004-02-15
- NAID 10012958399
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★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