An<unk>  (also known as pyramidal insufficiency) Is an injury or abnormality that 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<unk>  affects nerve fibers traveling from the anterior horn of the spinal cord or the cranial motor nuclei to the relevant muscle(s).<unk> s occur in the brain or the spinal cord as the result of stroke, multiple sclerosis, traumatic brain injury, cerebral palsy, atypical parkinsonisms, multiple system atrophy, and amyotrophic lateral sclerosis.
Upper motor neuron lesion
Lower motor neuron lesion
Accessory nerve disorder
Motor neuron disease
Upper motor neuron syndrome
Hereditary motor and sensory neuropathy
Neurocristopathy
Neuromuscular junction disease