方法：采用干性颅骨18具，福尔马林固定的头颅标本12具分别进行骨窗及乳突孔的定位测量和桥小脑角结构距骨窗的距离测定。
Methods: The location of bony "window" and mastoid foramen were studied , and the distance from bony "window" to cerebellopontine angle was measured on 18 dry and 12 wet cranial bones.
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。
Result: The needle inserted depths from mastoid into stylomastoid foramen for males and females were 16.
口两侧各有一对钩，虫体布满似乳突状小棘，只有成虫前端和末端两侧可见散在的隆起的椭圆孔状感觉器，虫体末端腹面可见肛孔。
There was a pair of curved hamuli on both sides of the mouth, while small spines like mastoid process were covered with the shape of the body.
头侧直肌起始于tpa的上表面，止于枕骨颈静脉突的下表面，可作为确定颅外颈静脉孔、茎乳孔的解剖标志。
The rectus capitis lateralis muscle extends vertically behind the internal jugular vein from the TPA to the jugular process of the occipital bone.
结果乳突、乳孔、颈静脉窝、枕髁都是重要的术中解剖学标志。
Results Mastoid process, jugular fossa, and occipital condyle were important signs.
结果乳突、乳孔、颈静脉窝、枕髁都是重要的术中解剖学标志。
Results Mastoid process, jugular fossa, and occipital condyle were important signs.
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