Intraoperative Neurophysiological Monitoring of Lower Cranial Nerves.{LCN, i.e. CN IX–XII}. Name of the muscles innervated by the these nerves. Principle of neurophysiological monitoring of LCN. Intraoperative Neurophysiological monitoring helps in. Techniques Aspects. Several neurophysiological monitoring techniques can be applied to monitor lower cranial nerves: For sensory. For motor pathway. Transcranial electrical motor evoked potentials { … Continue reading Neurophysiological monitoring of lower cranial nerves in patients with medullary tumor.