Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Anterolateral aspect of cricoid cartilage
INSERTION: Inferior cornu and lower laminar of thyroid cartilage
ACTION: Lengthens and tenses vocal cords by tilting thyroid cartilage forwards
NERVE: External branch of superiorlaryngeal branch of vagus nerve (X)

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