The anterior walls of sphenoid sinus located on the superior border of choanae, between nasal septum and middle nasal turbinate.
蝶窦前壁位于后鼻孔上缘上，鼻中隔和中鼻甲后缘之间。
The anterior walls of sphenoid sinus located on the superior border of choanae, between nasal septum and middle nasal turbinate.
蝶窦前壁位于后鼻孔上缘上，鼻中隔和中鼻甲后缘之间。
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