The length of lines linking root of styloid to the structures under lateral skull base and asterion to the structures in posterior cranial fossa and the angles between these lines and median vector were measured in 40 cranium.

• 方法 :通过测量 4 0例颅骨 ,确定茎突根部至侧颅底、星点至颅后窝各孔裂间连线的长度和各连线与正中矢状面所成角度。