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Definition: the nerve constituting the parasympathetic and sympathetic root of the pterygopalatine ganglion; it is formed in the region of the foramen lacerum by the union of the greater and deep petrosal nerves and runs through the pterygoid canal to the pterygopalatine fossa.
Synonym(s): nervus canalis pterygoideiTA, facial root, radix facialis, vidian nerve
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