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palatopharyngeus muscle (pharyngopalatinus, pharyngostaphylinus)
Forms posterior pillar of tonsillar fossa.
Origin: soft palate
Insertion:
-> posterior border of thyroid cartilage & aponeurosis of pharynx
Action:
1) narrows fauces
2) depresses soft palate
3) elevates pharynx & larynx
Innervation: pharyngeal plexus (cranial root of accessory nerve)
General
skeletal muscle (voluntary muscle)
References
Stedman's Medical Dictionary 26th ed, Williams &
Wilkins, Baltimore, 1995