Result: The needle inserted depths from mastoid into stylomastoid foramen for males and females were 16.
结果:面神经阻滞进针的深度:乳突尖至茎乳孔的距离,男性左侧为16。
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Methods: The location of bony "window" and mastoidforamen were studied , and the distance from bony "window" to cerebellopontine angle was measured on 18 dry and 12 wet cranial bones.
The jugular foramen can be exposed after removal of the mastoid process and the petrous bone under the labyrinth superiorly and by resection of jugular process posteriorly.