The motor system is the part of the central nervous system that is involved with movement. It consists of the pyramidal and extrapyramidal system.
Contents
1Pyramidal motor system
2Extrapyramidal motor system
3See also
4References
5External links
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 originate 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.
See also
Motor skill
Motor control
Motor disorder
References
^Rizzolatti G, Luppino G (2001) The Cortical Motor System. Neuron 31: 889-901 SD
External links
Media related to Motor systems at Wikimedia Commons
"Italian restaurant" redirects here. For the television series, see Italian Restaurant. Some typical Italian gastronomic products in a window display in Imola Pizza is one of the world's most popular foods and a common fast food item Part of a series on the Culture of Italy History People Languages Traditions Mythology and folklore Mythology folklore Cuisine Festivals Religion Art Literature Music and performing arts Music Media Television Cinema Sport Monuments World Heritage Sites Symbols Flag Coat of arms Italy portal v t e Italian cuisine History Ancient Roman cuisine Medieval cuisine Early modern cuisine Contemporary cuisine Regional cuisines Apulian cuisine Lombard cuisine Neapolitan cuisine Roman cuisine Sicilian cuisine Venetian cuisine Cuisine of Abruzzo Cuisine of Sardinia Lists Chefs Dishes Pas...
Part of a series on Bulgarians .mw-parser-output .nobold{font-weight:normal} българи Culture Literature Music Art Cinema Names Cuisine Dances Costume Sport Public holidays in Bulgaria By country Albania Australia Canada Czechoslovakia Greece New Zealand Romania Serbia South America Turkey Ukraine United States Bulgarian citizens France Germany Hungary Italy Lebanon Lithuania Macedonia Spain United Kingdom Subgroups Anatolian Balkanian Banat Bulgarians Bessarabian Bulgarian Dobrujans Macedonian Ruptsi Balkandzhii Pomaks (Bulgarian Muslims) Thracian Shopi/Torlaks Şchei Religion Bulgarian Orthodox Church Islam Catholic Church Protestant denominations Language Bulgarian Dialects Banat Bulgarian Other List of Bulgarians People of Bulgarian descent v t e Tarator is a cold soup made of yogurt, water, minced cucumber, dill, garlic, and sunflower or olive oil (Chips are...
Anthony Warlow Warlow in Sydney in 2008 Last Phantom of the Opera performance Background information Born ( 1961-11-18 ) 18 November 1961 (age 57) Wollongong, New South Wales, Australia Genres Opera, musical theatre Occupation(s) Opera singer, actor Years active 1988–present Associated acts John Farnham, Olivia Newton John Website anthonywarlowonline.com Anthony Thorne Warlow AM (born 18 November 1961 in Wollongong, New South Wales, Australia) is an Australian opera and musical theatre performer, noted for his character acting and considerable vocal range. He is a classically trained lyric baritone. Contents 1 Performances 1.1 Musical 1.2 Opera 1.3 Gilbert and Sullivan 1.4 Other performances 2 Phantom of the Opera : 2007-2009 3 The Pirates of Penzance tour: 2006–2007 4 Awards and nominations 5 Personal life 6 Recordings 6.1 DVDs 6.2 Solo and collaborative albums 6.3 Cast albums ...
Media related to Motor systems at Wikimedia Commons
Media related to Motor systems at Wikimedia Commons
