commissure fibers

交連線維

WordNet

1. a slender and greatly elongated substance capable of being spun into yarn (同)fibre
2. a leatherlike material made by compressing layers of paper or cloth (同)fibre, vulcanized fiber
3. any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber) (同)fibre
4. a bundle of nerve fibers passing from one side to the other of the brain or spinal cord

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. マハイム束の頻拍 mahaim fiber tachycardias
• 2. 脊髄障害の解剖学および局在性 anatomy and localization of spinal cord disorders
• 3. 末梢神経障害の評価のための皮膚生検 skin biopsy for the evaluation of peripheral nerve disease
• 4. 神経筋接合部の電気診断学的評価 electrodiagnostic evaluation of the neuromuscular junction
• 5. 成人における健康食 healthy diet in adults

English Journal

• Unusual compensatory neural connections following disruption of corpus callosum fibers in a patient with corpus callosum hemorrhage.

• Jang SH, Yeo SS, Chang MC.Author information Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University , Namku, Taegu , Republic of Korea.AbstractOBJECTIVE: We report on a patient with hemorrhage of the corpus callosum (CC) in whom unusual compensatory neural connections were observed following disruption of CC fibers.
• The International journal of neuroscience.Int J Neurosci.2013 Dec;123(12):892-5. doi: 10.3109/00207454.2013.810627. Epub 2013 Jul 9.
• OBJECTIVE: We report on a patient with hemorrhage of the corpus callosum (CC) in whom unusual compensatory neural connections were observed following disruption of CC fibers.METHODS: A 42-year-old female patient presented with callosal alien hand syndrome (AHS) after the onset of the hemorrhage. She
• PMID 23796149

• MRI-based morphometric characterizations of sexual dimorphism of the cerebrum of ferrets (Mustela putorius).

• Sawada K, Horiuchi-Hirose M, Saito S, Aoki I.Author information Department of Physical Therapy, Faculty of Medical and Health Sciences, Tsukuba International University, Tsuchiura, Ibaraki 300-0051, Japan. Electronic address: k-sawada@tius-hs.jp.AbstractThe present study aimed to characterize cerebral morphology in young adult ferrets and its sexual dimorphism using high-field MRI and MRI-based morphometry. Ex vivo short TR/TE (typical T1-weighted parameter setting for conventional MRI) and T2W (long TR/TE) MRI with high spatial resolution at 7-tesla could visualize major subcortical and archicortical structures, i.e., the caudate nucleus, lentiform nucleus, amygdala and hippocampus. In particular, laminar organization of the olfactory bulb was identifiable by short TR/TE-MRI. The primary and secondary sulci observable in the adult ferret were distinguishable on either short TR/TE- or T2W-MRI, and the cortical surface morphology was reproduced well by 3D-rendered images obtained by short TR/TE-MRI. The cerebrum had a significantly lower volume in females than in males, which was attributed to region-specific volume reduction in the cerebral cortex and subcortical white matter in females. A sexual difference was also detected, manifested by an overall reduction in normalized signal ratios of short TR/TE-MRI in all cerebral structures examined in females than in males. On the other hand, an alternating array of higher and lower short TR/TE-MRI intensity transverse zones throughout the cortex, which was reminiscent of the functional cortical areas, was revealed by maximum intensity projection (MIP) in 3D. The normalized signal ratio of short TR/TE-MRI, but not T2W-MRI in the cortex, was negatively correlated with the density of myelin-basic protein immunoreactive fibers (males, r=-0.440; females, r=-0.481). The present results suggest that sexual differences in the adult ferret cerebrum are characterized by reduced volumes of the cerebral cortex and subcortical white matter in females, and by overall reductions in physiochemical characteristics, as obtained by short TR/TE-MRI, in females. It should be noted that short TR/TE-MRI-based MIP delineated functional cortical areas related to myeloarchitecture in 3D. Such an approach makes possible conventional investigation of the functional organization of the cerebral cortex and its abnormalities using high-field MRI.
• NeuroImage.Neuroimage.2013 Dec;83:294-306. doi: 10.1016/j.neuroimage.2013.06.024. Epub 2013 Jun 14.
• The present study aimed to characterize cerebral morphology in young adult ferrets and its sexual dimorphism using high-field MRI and MRI-based morphometry. Ex vivo short TR/TE (typical T1-weighted parameter setting for conventional MRI) and T2W (long TR/TE) MRI with high spatial resolution at 7-tes
• PMID 23770407

• High-resolution MRI and diffusion-weighted imaging of the human habenula at 7 tesla.

• Strotmann B, Heidemann RM, Anwander A, Weiss M, Trampel R, Villringer A, Turner R.Author information Department of Neurophysics, Max-Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.AbstractPURPOSE: To investigate the feasibility of discriminating the habenula in human brain using high-resolution structural MRI and diffusion-weighted imaging at 7 Tesla (T).
• Journal of magnetic resonance imaging : JMRI.J Magn Reson Imaging.2013 Nov 20. doi: 10.1002/jmri.24252. [Epub ahead of print]
• PURPOSE: To investigate the feasibility of discriminating the habenula in human brain using high-resolution structural MRI and diffusion-weighted imaging at 7 Tesla (T).MATERIALS AND METHODS: MRI experiments included a MP2RAGE and GRE sequence to acquire quantitative parameter maps of T1, T2*, and a
• PMID 24259421

Japanese Journal

• Neural Interaction of Gonadotropin-regulating Hormone Immunoreactive Neurons and the Suprachiasmatic Nucleus with the Paraventricular Organ in the Japanese Grass Lizard (Takydromus tachydromoides)(Endocrinology)

• Kawano Emi,Takahata Yoko,Oishi Tadashi,Ukena Kazuyoshi,Tsutsui Kazuyoshi,Tamotsu Satoshi
• Zoological science 23(3), 277-287, 2006-03-25
• … GnRH-immunoreactive (ir) cells were localized in the posterior commissure and lateral hypothalamic area. … Some of the serotonin-ir fibers extending from the PVO to the lateral hypothalamic area contacted the GnRH-ir cell bodies. … GnlH-ir cells were localized in the nucleus accumbens, paraventricular nucleus, and upper medulla, and GnlH-ir fibers from the paraventricular nucleus contacted the lateral processes of serotonin-ir neurons in the PVO. …
• NAID 110004804578

• 脳スライスにおけるシナプス可塑的変化とてんかん波

• 夏目 季代久,緒方 元気
• 電子情報通信学会技術研究報告. NLP, 非線形問題 104(472), 65-69, 2004-11-20
• 海馬で観察される神経リズムは,海馬神経回路内のインタラクトームと密接に関わっている。シナプス長期増強(LTP)に関わっているLTPインタラクトームは、シナプス後細胞にあるNMDA受容体と、細胞内Ca^<2+>/カルモジュリン依存性プロテインキナーゼII(CaMKII)からなる。我々は、モルモット海馬スライスに、GABA_A阻害薬であるBicucullineを投与する事により生じるてんか …
• NAID 110003292659

Related Links

• Commissural fiber - Wikipedia, the free encyclopedia

The commissural fibers or transverse fibers connect the two hemispheres of the brain. They include: the transverse fibers of the corpus callosum. Using Diffusion Tensor Imaging, researchers have been able to produce a visualization of this ...

• commissural fiber - Medical Dictionary - The Free Dictionary

A fibers myelinated afferent or efferent fibers of the somatic nervous system having a diameter of 1 to 22 μm and a conduction velocity of 5 to 120 meters per second; they include the alpha, beta, delta, and gamma fibers. accelerating fibers ...

---

★リンクテーブル★

リンク元

「交連線維」

「交連線維」

　　[★]

英

commissure fibers (KL), commissural fibers

ラ

fibrae commissurales

• 左右の大脳半球を連絡する線維

• 1.脳梁
• 2.前交連
• 3.後交連
• 4.脳弓交連
• 5.手綱交連