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.

hiatus canalis facialis

A hiatus of the canal for the greater petrosal nerve.
Synonym: hiatus canalis facialis
See also: hiatus