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stylomastoid foramen


Definition: the distal or external opening of the facial canal on the inferior surface of the petrous portion of the temporal bone, between the styloid and mastoid processes; it transmits the facial nerve and stylomastoid artery.

Synonym(s): foramen stylomastoideumTA

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.