蝶腭孔
The crista infrazygomatica is a arc structure, suggesting that maxillary third molar tooth and second molar tooth should be a marker for block anesthesia of naterior palatine nerve through sphenopalatine foramen.
颧下嵴为一弧形结构,提示临床经腭大孔进行腭前神经阻滞麻醉时,应以上颌第二磨牙和第三磨牙为标志;
The crista ethmoidalis of the perpendicular plate of the palatine bone was located just antero-inferior to the sphenopalatine foramen, and anterior to the lateral posterior nasal arteries.
筛骨嵴为腭骨垂直板上一骨嵴,筛骨嵴正好位于蝶腭孔的前下方,鼻后外侧动脉出蝶腭孔正好位于其后方。
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