Atasever A, Durgun B, Celik H H, Yilmaz E
Department of Anatomy, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Acta Anat (Basel). 1993;146(4):251-4. doi: 10.1159/000147464.
It has long been known that the pupillomotor fibers have a localized course in the dorsomedial periphery through the subarachnoid portion of the oculomotor nerve. However we do not have detailed knowledge about the organization of the fibers innervating individual extraocular muscles. This subject is of clinical importance for locating the site of lesions in patients with partial oculomotor nerve palsies. In this study the peripheral course of the axons innervating the superior rectus muscle were studied in the subarachnoid portion of the oculomotor nerve of the rat by making multiple injections of horseradish peroxidase solution into the muscle and reacting the nerve with tetramethylbenzidine as a chromogen. Coronal sections of the nerve showed that the axons innervating the superior rectus muscle were localized in the dorsal part of the nerve. Within the precavernous portion these axons showed a wider distribution invading dorsomedial and dorsolateral parts of the nerve.
长期以来，人们都知道瞳孔运动纤维在动眼神经蛛网膜下部分通过背内侧周边区域走行。然而，我们对于支配各个眼外肌的纤维的组织结构并无详细了解。这个主题对于定位部分动眼神经麻痹患者的病变部位具有临床重要性。在本研究中，通过向大鼠动眼神经蛛网膜下部分的上直肌多次注射辣根过氧化物酶溶液，并使用四甲基联苯胺作为显色剂与神经反应，研究了支配上直肌的轴突的周边走行。神经的冠状切片显示，支配上直肌的轴突位于神经的背侧部分。在海绵窦前部，这些轴突分布更广泛，侵入神经的背内侧和背外侧部分。
