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Medical Term:

hiatus for lesser petrosal nerve


the small opening in the petrous bone lateral to the hiatus for greater petrosal nerve that gives passage to the lesser petrosal nerve.

Synonym(s): hiatus canalis nervi petrosi minorisTA, Arnold canal, canalis nervi petrosi superficialis minoris

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