CRANIALNERVEANATOMY颅神经结构,TheTrochlearNerveorCranialNerve滑车神经,TheTrochlearNerve,Thefourthcranialnerveprovidesmotorinnervationtoonlyasinglemuscle,thesuperiorobliquemuscle（上斜肌）.,RealoriginoftrochlearnerveCerebralpeduncle（大脑脚）Nucleus（神经核）,Trochlearnucleus滑车神经核,Thetrochlearnucleusissituatedattheleveloftheinferiorcolliculus（滑车神经核位于下丘水平）,justventraltotheaqueduct（中脑导水管腹侧）,posteriortotheMLF（内侧纵束）andjustinferiortotheoculomotornervecomplex.ThelocalizationofthenucleusveryclosetotheMLFexplainswhylesionsth
