Neuroanatomical Study of Galen’s Anastomosis (Nervus laryngeus) in the Dog

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Abstract
To further knowledge of the laryngeal nerves, the nerve fibers of Galen’s anastomosis were studied using two neuroanatomical methods, namely nerve degeneration and horseradish peroxidase labeling. It is demonstrated that the superior laryngeal nerve forms part of the tracheal and esophageal nervous system. The value of the results in relation to physiological laryngeal studies and to human laryngeal diseases is discussed.