Acute Spinal Cord Injury

There's two main branch points. Is it upper motor neuron, meaning brain, brain stam cerebellum or spinal cord? Or is it lower motor ner peripheral nerve junction, muscle, nerve root, derth dorsal r ganglia? And if it's a combination of the tonias, rabes, peanut butter or haf ice cream, he says, why or why can't it be an and meaning something affecting the upper and lower motor neuron, a nervous system. So then i have to step back and say, where do i want to focus on? I personally, because i made a scheme for foot drop with arenberkwis ihad, i did not have an approach