How do you differentiate between upper motor neuron and lower motor neuron lesions based on clinical findings?
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Answer / Manish Verma
UMN lesions result in weakness, spasticity, hyperreflexia, and a positive Babinski sign, while LMN lesions cause weakness, flaccidity, hyporeflexia or areflexia, and atrophy. UMN lesions are typically found in the brain, such as motor cortex, brainstem, or cerebellum, while LMN lesions occur in the anterior horn of the spinal cord or nerve roots.
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