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| petrous part (呈三棱锥形，尖伸向前内，参与构成颅底。前面近尖端处有三叉神经压迹,后面中央部有内耳门，下面中央部有颈动脉管外口。底向后外，外耳门的后下方有乳突。乳突与前内侧的茎突之间有茎乳孔。上缘为小脑幕附着处) | |||
| facies inferior partis petrosae; pars petrosa pyramis; pyramid | |||
| petrosal part; petrous part | |||
| petrosa; petrous portion | |||
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| petrosa | |||
| 岩部: 91 phrases in 17 subjects |