| 释义 |
hiatus for lesser petrosal nerve hi·a·tus for less·er pe·tro·sal nerve [TA] 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 minoris [TA], Arnold canal, canalis nervi petrosi superficialis minoris |