Nomura Y
Acta Otolaryngol. 1976 Nov-Dec;82(5-6):317-24. doi: 10.3109/00016487609120915.
In the human cochlea, the following characteristics of nerve fiber arrangements were observed. 1. Where there was only the basilar fiber in the tunnel of Corti, the internal and tunnel spiral bundle were not observed. In such cases, the number of nerve fibers in the external spiral bundle was small. 2. In the tunnel of Corti, the basilar fibers (afferent) took a course at the base and crossing the tunnel slanting to the basal end. 3. The medial fibers were present with the internal spiral bundle and tunnel spiral bundle. These fibers are possibly efferent. 4. The external spiral bundle increases its fiber count when internal and tunnel spiral bundles were present in the organ of Corti. 5. The external spiral bundle was composed of the basilar and medial fibers. The former were less and the latter much more numerous in the bundle. 6. 85-90% of the afferent fibers went to the internal hair cells, while the remainder went to the external hair cells. 7. The nerve fibers were found in the organ of Corti lateral to the external spiral bundles. The fibers were running in the Hensen's and Claudius' cell area. 8. In some cases medial fibers showed a torpedo-like deformity in the tunnel of Corti. When this was observed, it was found distributed throughout the entire cochlea. Hearing disorders due to this pathology of the efferent fiber was suggested.
在人类耳蜗中，观察到神经纤维排列具有以下特征。1. 在柯蒂氏管仅有基底纤维的部位，未观察到内螺旋束和隧道螺旋束。在这种情况下，外螺旋束中的神经纤维数量较少。2. 在柯蒂氏管中，基底纤维（传入纤维）走行于基部，并斜穿过隧道向基底端延伸。3. 内侧纤维与内螺旋束和隧道螺旋束同时存在。这些纤维可能是传出纤维。4. 当柯蒂氏器官中存在内螺旋束和隧道螺旋束时，外螺旋束的纤维数量会增加。5. 外螺旋束由基底纤维和内侧纤维组成。在该束中，前者较少，后者较多。6. 85% - 90%的传入纤维进入内毛细胞，其余进入外毛细胞。7. 在柯蒂氏器官中外螺旋束外侧发现神经纤维。这些纤维走行于亨森细胞和克劳迪乌斯细胞区域。8. 在某些情况下，内侧纤维在柯蒂氏管中呈现鱼雷样畸形。当观察到这种情况时，发现其分布于整个耳蜗。提示存在因传出纤维这种病理改变导致的听力障碍。
