[解剖学、组织学]五、临床耳CT解剖学（clinical CT anatomy of ear）

图1‐99外耳道下壁层面slice through inferior wall of external auditory mea tus。8 ﹒乙状窦sigmoid sinus。5 ﹒颈内动脉管升部ascending part of internal carotid canal。14 ﹒面神经管乳突段mastoid segment of facial canal。黑框内小图为左侧鼓室‐耳蜗局部放大图：a ﹒耳蜗底周basilar turn of cochlea。图1‐105面神经管鼓室段层面slice t ......