Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Inferior cartilage and mucosa of pharyngeal orifice of auditory tube
INSERTION: Upper border of thyroid cartilage and inferior constrictor muscle fibers
ACTION: Elevates pharynx and larynx and assists swallowing . Opens auditory canal during swallowing
NERVE: Pharyngeal branch of vagus nerve (X) with its motor fibers from cranial accessory nerve (XI)

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