图1‐111咽鼓管层面slice through auditory tube。1 ﹒颅中窝middle cranial fossa。9 ﹒枕骨occipital bone。9 ﹒颈内动脉管升部ascending part of internal carotid canal。图1‐113颈内动脉管上升部层面slice through ascending part of internal carotid ca‐nal。5 ﹒颈内动脉管internal carotid canal。黑框内小图为匙突‐耳蜗放大图: ......