摘要: Vital functions such as breathing and swallowing, well speaking, are coordinated by the inferior cranial nerves: The ninth, tenth, twelfth nerves. Their lesions therefore require an exact diagnosis treatment, often of emergency nature. Electrophysiological techniques, best tools for prediction course motor nerve paralysis, however, difficult in hidden muscles hypopharynx larynx (Buchthal 1959, Faaborg-Andersen 1965).