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Medical Term:

hiatus for greater petrosal nerve


the opening on the anterior aspect of the petrous part of the temporal bone that leads to the facial canal and gives passage to the greater petrosal nerve.

Synonym(s): hiatus canalis nervi petrosi majorisTA, fallopian hiatus, Ferrein foramen, hiatus canalis facialis, hiatus of facial canal

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.