WordNet

(physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer"
a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going" (同)scheme
a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender" (同)system of rules
a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
a procedure or process for obtaining an objective; "they had to devise a system that did not depend on cooperation"
the living body considered as made up of interdependent components forming a unified whole; "exercise helped him get the alcohol out of his system"
machine that converts other forms of energy into mechanical energy and so imparts motion
a nonspecific agent that imparts motion; "happiness is the aim of all men and the motor of all action"
the act of driving an automobile

PrepTutorEJDIC

〈C〉(関連した部分から成る)『体系』,系統,組織[網],装置 / 〈C〉(教育・政治などの)『制度』,機構;《the~》体制 / 〈C〉(思想・学問などの)『体系』,学説 / 〈C〉(…の)『方法』,方式,やり方《+of doing》 / 〈U〉正しい方針(筋道,順序) / 〈U〉《the~》(身体の)組織,系統 / 〈U〉《the~,one's~》身体,全身
(電気の)『モーター』,電動機 / エンジン,(特に)内燃機関 / 《英》自動車(motorcar) / 《名詞の前にのみ用いて》 / モーターの;エンジンの;自動車の / モーター(エンジン)による,自動車による / (神経・筋肉について)運動の / 自動車で行く / …‘を'自動車で運ぶ
自動車運転〈技術〉,ドライブ
気のきいた言葉

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/01/04 16:34:15」(JST)

wiki en

[Wiki en表示]

The motor system is the part of the central nervous system that is involved with movement. It consists of the pyramidal and extrapyramidal system.

Pyramidal motor system

The pyramidal motor system, also called the pyramidal tract or the corticospinal tract, start in the motor center of the cerebral cortex.^[1] There are upper and lower motor neurons in the corticospinal tract. The motor impulses originates in the giant pyramidal cells or Betz cells of the motor area; i.e., precentral gyrus of cerebral cortex. These are the upper motor neurons (UMN) of the corticospinal tract. The axons of these cells pass in the depth of the cerebral cortex to the corona radiata and then to the internal capsule passing through the posterior branch of internal capsule and continue to descend in the midbrain and the medulla oblongata. In the lower part of Medulla oblongata 80 to 85% of these fibers decussate (pass to the opposite side) and descend in the white matter of the lateral funiculus of the spinal cord on the opposite side. The remaining 15 to 20% pass to the same side. Fibers for the extremities (limbs) pass 100% to the opposite side. The fibers of the corticospinal tract terminate at different levels in the anterior horn of the grey matter of the spinal cord. Here the lower motor neurons (LMN) of the corticospinal cord are located. Peripheral motor nerves carry the motor impulses from the anterior horn to the voluntary muscles.

Extrapyramidal motor system

The extrapyramidal motor system consists of motor-modulation systems, particularly the basal ganglia and cerebellum. For information see extrapyramidal system.

References

^ Rizzolatti G, Luppino G (2001) The Cortical Motor System. Neuron 31: 889-901 SD

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. 筋萎縮性側索硬化症およびその他の運動ニューロン疾患の臨床的特徴 clinical features of amyotrophic lateral sclerosis and other forms of motor neuron disease
2. 筋電図検査の概要 overview of electromyography
3. 協調運動発達障害：臨床的特徴および診断 developmental coordination disorder clinical features and diagnosis
4. 多系統萎縮症：予後および治療 multiple system atrophy prognosis and treatment
5. 二次性中枢神経系リンパ腫の臨床症状および診断 clinical presentation and diagnosis of secondary central nervous system lymphoma

English Journal

Rapid determination of dopamine in human plasma using a gold nanoparticle-based dual-mode sensing system.

Zhang Y1, Qi S2, Liu Z1, Shi Y1, Yue W3, Yi C4.
Materials science & engineering. C, Materials for biological applications.Mater Sci Eng C Mater Biol Appl.2016 Apr 1;61:207-13. doi: 10.1016/j.msec.2015.12.038. Epub 2015 Dec 19.
Dopamine plays a very important role in biological systems and has a direct relationship with the ability of learning and cognition, human desires, feelings and mental state, as well as motor functions. Traditional methods for the detection of dopamine are complicated and time-consuming, therefore i
PMID 26838842

Is better preservation of eccentric strength after stroke due to altered prefrontal function?

Hedlund M1, Lindström B1, Sojka P2, Lundström R3, Boraxbekk CJ4,5.
Neurocase.Neurocase.2016 Apr;22(2):229-42. doi: 10.1080/13554794.2015.1130232. Epub 2016 Jan 11.
Ventrolateral prefrontal cortex (VLPFC) is part of a network that exerts inhibitory control over the motor cortex (MC). Recently, we demonstrated that VLPFC was more activated during imagined maximum eccentric than during imagined concentric contractions in healthy participants. This was accompanied
PMID 26750576

Sustained attention training reduces spatial bias in Parkinson's disease: a pilot case series.

DeGutis J1,2,3, Grosso M1,2, VanVleet T4, Esterman M1,2,5, Pistorino L6, Cronin-Golomb A6.
Neurocase.Neurocase.2016 Apr;22(2):179-86. doi: 10.1080/13554794.2015.1088035. Epub 2015 Sep 11.
Individuals with Parkinson's disease (PD) commonly demonstrate lateralized spatial biases, which affect daily functioning. Those with PD with initial motor symptoms on the left body side (LPD) have reduced leftward attention, whereas PD with initial motor symptoms on the right side (RPD) may display
PMID 26360648