<prompt> Spinomuscular atrophy is seen in lesion of:Anterior hornPeripheral nerveNeuromuscular junctionAny of the above  <response>: Answer is A Anterior horn cells: Spinomuscular Atrophy is a form of motor neuron disease that affects the lower motor neuron Anterior horn cells only. The site of LMN lesion in LMN type motor neuron disease is the anterior horn cell. 