胎儿眼球下斜肌止端与相关结构关系的解剖学研究

目的　了解下斜肌止端的确切位置以及与相关结构间的解剖关系。方法　本文采用大体解剖学方法对 15 8只 3～ 9个月发育不同阶段的胎儿眼球进行了观察。结果　根据下斜肌止端前、后缘与外直肌止端位置关系分别分为 6种和 4种类型 ,下斜肌止端位置后缘与球后视神经位置关系分 3种类型 ,并见到 3例下斜肌止端后缘与视神经鞘相连。结论　下斜肌与外直肌和视神经有密切的位置关系

Anatomical Study of the Related Position between the Terminal Ends of the Inferior Oblique Muscle and Related Structures of Fetal Eyeball

Objective To explore the related position between the terminal ends of the inferior oblique muscle and related structures. Method 158 fetal eyeballs were observed by gross anatomical method. Results The related position between the terminal margins of the inferior oblique muscle and the terminal ends of the lateral rectus can have 6 types or 4 types and the relationship between the terminal margins of the inferior oblique muscle and retrobulbar optic nerve can have 3 types. It was found that the posterior margins of the inferior oblique muscle were connected with the sheath of optic never in 3 cases. Conclusion The inferior oblique muscle have intimate relationship with lateral rectus and optic nerve in position.