<Tr> <Th_colspan="2"> Upper motor neuron lesion </Th> </Tr> <Tr> <Td_colspan="2"> The motor tract . </Td> </Tr> <P> An upper motor neuron lesion (also known as pyramidal insufficiency) occurs in the neural pathway above the anterior horn cell of the spinal cord or motor nuclei of the cranial nerves . Conversely, a lower motor neuron lesion affects nerve fibers traveling from the anterior horn of the spinal cord or the cranial motor nuclei to the relevant muscle (s). </P> <P> Upper motor neuron lesions occur in the brain or the spinal cord as the result of stroke, multiple sclerosis, traumatic brain injury and cerebral palsy . </P>

Difference between upper motor neurone lesion and lower motor neurone lesion
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