hiatus canalis facialis


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hi·a·tus for great·er pe·tro·sal nerve

[TA]
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.
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hiatus canalis facialis

A hiatus of the canal for the greater petrosal nerve.
Synonym: hiatus canalis facialis
See also: hiatus
Medical Dictionary, © 2009 Farlex and Partners