Atasever A, Durgun B, Kansu T, Cumhur M
Department of Anatomy, Hacettepe University, Ankara, Turkey.
J Anat. 1992 Dec;181 ( Pt 3)(Pt 3):499-501.
There is clinical evidence of topographic localisation of fibres within the oculomotor nerve. It is generally accepted that the pupillomotor fibres have a localised course within the dorsomedial periphery of the subarachnoid portion. However, the precise course of the individual groups of axons innervating each muscle has not been examined in detail. In this study the course of the axons innervating the medial rectus muscle was investigated in the subarachnoid portion of the oculomotor nerve of the rat. The medial rectus muscle was injected with horseradish peroxidase until it was fully infiltrated. The subarachnoid portion of the oculomotor nerve was removed and sectioned longitudinally in the sagittal plane. Sections were reacted with tetramethylbenzidine as a chromogen. Labelled axons were found to be localised in the ventral part of the subarachnoid portion of the nerve.
有临床证据表明动眼神经内存在纤维的局部定位。人们普遍认为瞳孔运动纤维在蛛网膜下腔部分的背内侧周边走行。然而，支配每块肌肉的各群轴突的精确走行尚未详细研究。在本研究中，对大鼠动眼神经蛛网膜下腔部分支配内直肌的轴突走行进行了研究。向内直肌注射辣根过氧化物酶直至完全浸润。切除动眼神经的蛛网膜下腔部分并在矢状面纵向切片。切片与作为显色剂的四甲基联苯胺反应。发现标记的轴突位于神经蛛网膜下腔部分的腹侧。
