PATHWAYS CONNECTING THE RIGHT AND LEFT COCHLEAR NUCLEI
PATHWAYS CONNECTING THE RIGHT AND LEFT COCHLEAR NUCLEI
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DOI：
10.1002/cne.902120308
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发表时间：
1982-01-01
影响因子：
2.5
通讯作者：
GASTON, KC
中科院分区：
文献类型：
--
作者：
CANT, NB;GASTON, KC
通过逆行和顺行轴突运输技术研究了[在猫]左右耳蜗核之间的连接。位于耳蜗前腹侧核前部和后腹侧核后部的大的多极神经元投射到另一侧的耳蜗腹侧和背侧核。此外，耳蜗背核深层的巨细胞投射到对侧耳蜗后腹侧核，也可能投射到对侧耳蜗背核。利用辣根过氧化物酶标记的小麦胚芽凝集素的轴突顺行转运，确定了交叉连接的末端分布模式。虽然没有任何部分的耳蜗核复合体是完全没有顺行标记的，但最密集的标记是在耳蜗前腹侧核的前部，整个耳蜗后腹侧核（在那里它与细胞体密切相关），以及耳蜗背核的梭状和浅层。这些从一个耳蜗核到另一个耳蜗核的直接突触连接可能在中枢神经系统内依赖双耳相互作用的过程中发挥重要作用。
Connections between the right and left cochlear nuclei were studied [in the cat] by retrograde and anterograde axonal transport techniques. Large, multipolar neurons in the anterior and posterior divisions of the anteroventral cochlear nucleus and in the posteroventral cochlear nucleus project to the ventral and dorsal cochlear nuclei on the opposite side. In addition, giant cells in the deep layers of the dorsal cochlear nucleus project to the contralateral posteroventral cochlear nucleus and possibly to the contralateral dorsal cochlear nucleus. The pattern of terminal distribution of the crossed connections was determined by using the anterograde axonal transport of horseradish peroxidase-labeled wheat germ lectin. Although no part of the cochlear nuclear complex is completely free of anterograde label, the densest labeling is in the anterior division of the anteroventral cochlear nucleus, throughout the posteroventral cochlear nucleus (where it is closely associated with cell bodies), and in the fusiform and superficial layers of the dorsal cochlear nucleus. These direct synaptic connections from 1 cochlear nucleus to the other could play a significant role in processes that depend on binaural interactions within the CNS.