Assertion: upper motor neuron | /r/HasProperty | cortico-spinal interneurons
Facets:
Source sentences:
text: Lower motor neurons originate in the spinal cord and synapse with muscle fibers while upper motor neurons are cortico-spinal interneurons.
text: Upper motor neurons are cortico-spinal interneurons that arise from the motor cortex and descend to the spinal cord where they activate the lower motor neurons through synapses.