The Metabolism of Laryngeal Muscles: Its Influence on the Physiology and Pathology of the Glottis

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Abstract
Enzymatic and histologic examinations of laryngeal muscles in man and cattle resulted in the following observations. In man, the posterior cricoarytenoid muscle has the highest aerobic capacity and the best capillary supply of the larynx, and not the vocalis muscle. Husson's neurochronaxic theory of vocal cord vibrations can not be supported by biochemical studies of the vocalis muscle. High aerobic metabolism of the human posterior cricoarytenoid muscle is necessary for the almost constant action of this muscle. Therefore, one may logically expect that in man it is more vulnerable to oxygen deficiency than the other laryngeal muscles.

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