圖34 半規(guī)管三(右)

A:前半規(guī)管superiorsemicircularcanalB:外半規(guī)管lateralsemicircularcanalC:共腳commoncrusD:后半規(guī)管posteriorsemicircularcanalE:乙狀竇sigmoidsinusF:面神經(jīng)垂直段mastoidsegmentoffacialnerveG:頸靜脈球jugularbulb變異較大,一般右側(cè)位置比左側(cè)為高。據(jù)我們測(cè)量,左右兩 ......（本文共 241 字 , 1 張圖）     [閱讀本文] >>