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Human Anatomy: Muscle Groups


Human Anatomy



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Muscle Function & Other Pertinent Medical Information
- POSTERIOR CRICOARYTENOID -
ORIGIN: Posterior aspect of cricoid cartilage
INSERTION: Muscular process of arytenoid cartilage
ACTION: Abducts and laterally rotates arytenoid cartilage (opens rima glottidis)
NERVE: Recurrent laryngeal branch of vagus nerve (X)













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