Motor syste3 - Motor system: organisation and disorders...

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Motor system: organisation and disorders This note deals with how motor responses are controlled by the nervous system The motor system: UMNs and LMNs Motor system: This consist of neurones & pathways whose integrated activity allows normal movements to occur. There are 5 main areas of CNS involved in motor control and they all participate in sequence of events that occurs when voluntary movement is desired: o Pyramidal system, origins in the cortex o Basal ganglia o Cerebellum o Brainstem o Upper motor neurones (UMNs) Central pattern generators in spinal cord co-ordinate basic programmed rhythmic movements UMNs project to spinal cord via descending tracts where they exert influence on spinal LMNs in reflex arcs Tracts are split into two groups o
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Motor syste3 - Motor system: organisation and disorders...

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