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September 1968

Studies on the Extrinsic Laryngeal Muscles

Author Affiliations

Iowa City, Iowa
From the Department of Otolaryngology and Maxillofacial Surgery, College of Medicine, University of Iowa, Iowa City, Iowa.

Arch Otolaryngol. 1968;88(3):273-278. doi:10.1001/archotol.1968.00770010275013

THIS PAPER describes two experimental studies on extralaryngeal muscles of the larynx. Both focus on the sternothyroid and thyrohyoid muscles. The first investigation is primarily basic physiology while the second is clinical in nature. The idea of developing a corrective procedure for unilateral paralysis of the cricothyroid muscle, the second study, was truly serendipidous, a consequence of the findings of a basic research project.

Physiological Properties of the Sternothyroid and Thyrohyoid Muscles  An increasing interest in the activity of the extralaryngeal muscles has been demonstrated in the past decade. Although some studies have been limited to an examination of the respiratory function of these muscles,1,2 the majority of investigators have concerned themselves with the role of the extrinsic laryngeal muscles in phonation. The early experimental work of Katzenstein3 was continued by Schilling,4 Michel5 and Sonninen,6 who advanced our knowledge of the structure and function of

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