title: Functions of extrapyramidal systems in motor control. 1. supraspinal descending pathways.
mesh_terms: D000818:Animals; D002415:Cats; D002531:Cerebellum / Q000502:physiology; D005116:Extrapyramidal Tracts / Q000502:physiology*; D006801:Humans; D007395:Interneurons / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009475:Neurons, Afferent / Q000502:physiology; D009638:Norepinephrine / Q000502:physiology; D011187:Posture; D011817:Rabbits; D012018:Reflex; D012154:Reticular Formation / Q000502:physiology; D013131:Spine / Q000502:physiology*; D013569:Synapses / Q000502:physiology; D009435:Synaptic Transmission; D003336:Tectum Mesencephali / Q000502:physiology; D013681:Tegmentum Mesencephali / Q000502:physiology; D014726:Vestibular Nuclei / Q000502:physiology
chemical_list: D009638:Norepinephrine