Distribution of afferent fibers in the brainstem from end organs in the ear and lateral line in the European eel.

Distribution of afferent fibers in the brainstem from end organs in the ear and lateral line in the European eel.
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欧洲鳗鱼耳端器官和侧线的脑干传入纤维的分布。

DOI:
10.1002/cne.902650405
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发表时间:
1987
期刊:
The Journal of comparative neurology
影响因子:
--
通讯作者:
Maslam,S
Maslam,S
中科院分区:
--
文献类型:
--
作者:
Meredith,GE;Roberts,BL;Maslam,S

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用辣根过氧化物酶(HRP)标记了来自鳗侧线系统和迷路的感觉神经纤维,并追踪到同侧脑干的不同靶点,前侧线神经的3个支和后侧线神经的颞上支在内侧核腹侧部形成重叠的终末带。身体上的后侧线神经仅在内侧核的背侧半部分中表示。来自内耳耳石终末器官的第八神经纤维将纤维送入三个octavus核的背侧部分:前,大细胞和下降,囊状纤维位于最内侧,椭圆囊纤维位于最外侧。前庭器官,特别是半规管和椭圆囊的纤维,密集地终止于这些核的腹侧部分和切向核。所有的感觉器官都将纤维送入毛特纳样神经元的区域,除了球囊外,所有的感觉器官都终止于小脑的网状结构、切向核和颗粒隆起。初级感觉输入到octavolateralis传出核只来自迷路,和纤维从球囊单独穿透传出神经元胞体的区域。除球囊外,其他的神经终末器官的纤维投射到网状结构,在那里它们可以接触传出胞体的树突。来自侧线和第八神经的纤维在内侧核的吻极和小脑的颗粒隆起处最广泛地重叠。
Sensory nerve fibers from the lateral line system and labyrinth ofAnguilla anguillawere labeled with horseradish peroxidase and traced to various targets in the ipsilateral brainstem.The three rami of the anterior lateral line nerve and the supratemporal ramus of the posterior lateral line nerve form overlapping terminal zones in the ventral portion of nucleus medialis. The posterior lateral line nerve on the body is represented exclusively in the dorsal half of the nucleus medialis. Eighth nerve fibers from the otolithic end organs in the inner ear send fibers into dorsal portions of three octavus nuclei: anterior, magnocellular, and descending, and saccular fibers lie most medial and utricular fibers most lateral. Fibers from vestibular organs, especially the semicircular canals and utricle, end densely in ventral portions of these nuclei and in the tangential nucleus. All labyrinthine sense organs send fibers into the region of a Mauthner‐like neuron, and all except the saccule terminate in the reticular formation, tangential nucleus, and eminentia granularis of the cerebellum. Primary sensory input to the octavolateralis efferent nucleus comes only from the labyrinth, and fibers from the saccule alone penetrate the region of efferent neuronal somata. Fibers from labyrinthine end organs except the saccule project to the reticular formation where they may contact the dendrites of efferent somata. Fibers from the lateral line and the eighth nerve overlap most extensively at the rostral pole of the nucleus medialis and in the eminentia granularis of the cerebellum.
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发表时间: 1982
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