Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Palatine aponeurosis and posterior margin of hard palate
INSERTION: Upper border of thyroid cartilage and blends with constrictor fibers. Upper fibers interdigitate with opposite side
ACTION: Elevates pharynx and larynx . Closes nasopharyngeal isthmus in swallowing
NERVE: Pharyngeal branch of vagus nerve (X) with its motor fibers from cranial accessory nerve (XI)

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