The hiatus for lesser petrosal nerve is a hiatus in the petrous part of the temporal bone which transmits the lesser petrosal nerve. It is located posterior to the groove for the superior petrosal sinus and posterolateral to the jugular foramen.
The hiatus for lesser petrosal nerve receives the lesser petrosal nerve as it branches from the glossopharyngeal nerve (CN IX) before the glossopharyngeal enters the posterior cranial fossa through the jugular foramen. The lesser petrosal nerve then travels anteriorly from the hiatus toward the foramen ovale, through which it exits the cranial cavity.
【 語 句 】
・hiatus：（割れ目） ・petrous part of the temporal bone：側頭骨錐体部 lesser petrosal nerve：小錐体神経 ・goove：溝 ・superior petrosal sinus：上錐体静脈洞 ・jugular foramen：頚静脈孔 ・glossopharyngeal nerve：舌咽神経 ・posterior cranial fossa：後頭蓋窩 ・foramen ovale：卵円孔 ・cranial cavity：頭蓋腔
