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[External laryngeal muscles--origin, insertion, length and potential force].

J Lang, S Nachbaur, K Fischer

    Gegenbaurs Morphologisches Jahrbuch
    |January 1, 1986
    PubMed
    Summary
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    This study measured key laryngeal muscles and their circumferences to estimate muscle force. The course of the superior laryngeal nerve was also examined in relation to these muscles.

    Area of Science:

    • Anatomy
    • Physiology

    Context:

    • Understanding laryngeal muscle function is crucial for voice production and swallowing.
    • Detailed anatomical data of the larynx is essential for surgical planning and treating voice disorders.

    Purpose:

    • To measure the dimensions of the cricothyroid, thyrohyoid, and inferior pharyngeal constrictor muscles.
    • To estimate the potential force of these laryngeal muscles based on their circumferences.
    • To investigate the anatomical course of the superior laryngeal nerve and its branches supplying the pharyngeal muscles.

    Summary:

    • Measurements of the cricothyroid, thyrohyoid, and inferior pharyngeal constrictor muscles were performed.
    • Muscle circumferences were recorded to infer potential muscle force.
    • The path of the superior laryngeal nerve's external branch and its innervation to the thyropharyngeal muscle were analyzed.

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    Impact:

    • Provides valuable anatomical data for laryngeal research and clinical applications.
    • Contributes to a better understanding of the biomechanics of voice production and deglutition.
    • Aids in the precise surgical navigation of the laryngeal and pharyngeal regions.