眼球运动杜万良2010.4.21先看两幅图。有问题吗?眼外肌的解剖眼外肌的解剖眼球的运动是三维的眼外肌的作用力随眼位而改变眼外肌的作用力随眼位而改变图b显示第一眼位的作用力ExtraocularMusclesPrimaryActionSecondaryActionTertiaryActionLateralrectusAbduction外转NoneNoneMedialrectusAdduction内转NoneNoneSuperiorrectusElevation上转Incyclotorsion内旋Adduction内转InferiorrectusDepression下转Excyclotorsion外旋Adduction内转SuperiorObliqueIncyclotorsion内旋Depression下转Abduction外转InferiorobliqueExcyclotorsion外旋Elevation上转Abduction外转肌群内转肌=直肌外转肌=斜肌上转肌=上直肌下斜肌下转肌=下直肌上斜肌内旋肌=上直肌上斜肌外旋肌=下直肌下斜肌图a显示第二和第三眼位的作用力