Does the motor cortex send an individual axon for each M1 neurondown the corticospinal tract down to lower motor neurons in thespinal cord? And then would lower motor neurons receive all theseaxons and calculate the population code on their own? Or does themotor cortex calculate the population code of all of its neurons(or all of the neurons that represent the corresponding muscle) andsend this information to the muscles? Also at what level are thesignals muscle-specific?
