MORPHOLOGICAL DIFFERENCES AMONG RADIAL AFFERENT-FIBERS IN THE CAT COCHLEA - AN ELECTRON-MICROSCOPIC STUDY OF SERIAL SECTIONS
MORPHOLOGICAL DIFFERENCES AMONG RADIAL AFFERENT-FIBERS IN THE CAT COCHLEA - AN ELECTRON-MICROSCOPIC STUDY OF SERIAL SECTIONS
复制标题
DOI：
10.1016/0378-5955(80)90007-6
复制
发表时间：
1980-01-01
期刊：
影响因子：
2.8
通讯作者：
LIBERMAN, MC
中科院分区：
文献类型：
--
作者：
LIBERMAN, MC
通过Corti器的连续切片，重建了104根桡神经传入纤维的整个无髓部分。每根放射状纤维不分支，与1个内毛细胞形成一个突触。支配毛细胞面向柱细胞的一侧的纤维通常直径较大，线粒体比支配毛细胞面向蜗轴的一侧的纤维丰富。一些薄的、缺乏突触的纤维与内毛细胞有更复杂的突触连接。本文提出了一种纤维分类方案，它可能与根据阈值和自发放电率对单个听神经单位的分类相关联。
The entire unmyelinated portions of 104 radial afferent fibers were reconstructed from serial ultrathin sections through the organ of Corti. Each radial fiber was unbranched and formed a single synapse with 1 inner hair cell. Fibers innervating the side of the hair cell facing the pillar cells were usually larger in diameter and richer in mitochondria than fibers innervating the side of the hair cell facing the modiolus. Some of the thin, mitochondrion-poor fibers had a more complex synaptic junction with the inner hair cell. A fiber classification scheme which may correlate with the classification of single auditory nerve units according to threshold and rate of spontaneous discharge is suggested.