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At the time the article was created Shi Hong Shen had no recorded disclosures.View Shi Hong Shen's current disclosures
At the time the article was last revised Craig Hacking had no recorded disclosures.View Craig Hacking's current disclosures
The pharyngeal nerve divides off the maxillary division just after emerging from the foramen rotundum to enter the pterygopalatine fossa. At the pterygopalatine ganglion receives parasympathetic fibers that supply pharyngeal mucosal glands which arrive at the ganglia via the greater petrosal nerve.
It leaves the fossa posteroinferiorly through the palatovaginal canal with the pharyngeal branch of the maxillary artery. It emerges in the posterosuperior aspect of the nasal cavity where it supplies the mucosa of the superior nasopharynx.
One to two tiny branches may leave the nerve to enter the orbit through the inferior orbital fissure. These orbital branches supply some periosteum, the orbitalis muscle (a vestigial smooth muscle covering the inferior orbital fissure which is of unknown significance in humans) and may contribute mucosal sensory fibers to the sphenoidal and ethmoidal sinuses.
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