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筛前动脉
arteriae ethmoidalis anterior
- 泪囊窝与筛前动脉存在三种毗邻关系。
There are three kinds of relationships between the lacrimal sac fossa and anterior ethmoid artery. - 结论：筛动脉的起始及眶内走行多变异，筛后动脉变异较筛前动脉多见。
Conclusion: the origin and intraorbital course of the ethmoidal artery is variable, which is more common in the posterior ethmoidal artery than in the anterior ethmoidal arteries. - 结果：鼻的血供主要来源于鼻外侧动脉，还有筛前动脉的分支、眼动脉的鼻背支参与。
Results:Besides the branches of anterior ethmoidal artery and dorsal nasal branches of ophthalmic artery, the primary blood supply to the nose was derived from the lateral nasal arteries.
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