Superior rectus muscle

Superior division of oculomotor nerve coursed between optic nerve and superior rectus muscle after it left zinn ring, its branches entered into the superior rectus muscle and levator muscle.

动眼神经上干出总腱环后行于上直肌与视神经之间，并分支入上直肌和上睑提肌。

Conclusions Myositis was one of the uncommon clinical subtypes of IOIP, Superior rectus was the most involved muscle, followed by lateral, medial and inferior rectus.

结论肌炎型是特发性眼眶炎性假瘤中较少见的临床亚型之一，以上直肌受累最常见，其次为外直肌、内直肌与下直肌。

Conclusion The muscle union of lateral, superior and inferior rectus make eyeball move abductively.

结论外直肌与上、下直肌联合术可使眼球有一定的外展功能。