Peripheral distribution and central projections of the lateral-line nerves in goldfish, Carassius auratus.
Peripheral distribution and central projections of the lateral-line nerves in goldfish, Carassius auratus.
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DOI：
10.1159/000116496
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
R. L. Puzdrowski
中科院分区：
文献类型：
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作者：
R. L. Puzdrowski
本文描述了金鱼的侧线系统，从受体在体表的分布到初级传入在octavolateralis柱内的终止。金鱼有一个连续的侧线管道系统，包括眶上，眶下，operculomandibular和颞上连合管的头部和一个干管延伸的长度躯干。每两个管孔之间有一个神经肥大。头部神经管神经乳突的总数为74至100个。在身体上，神经管神经瘤的总数范围从52到60。与每个神经管相关的是浅表神经瘤群。头部大约有1,000个浅表神经瘤，它们成簇或成排排列，垂直于相关神经管的长轴。在身体上，每个尺度上有3-9个浅表神经瘤。此外，在尾鳍的鳍条之间，共有1，000个表面神经丘排列成水平线。神经乳突由四条侧线神经的分支支配。背侧前侧线神经支配眶上管和眶下管以及相关的浅神经瘤。腹侧前侧线神经支配盖下颌管和相关的浅表神经瘤，以及盖上的浅表神经瘤。中侧线神经支配抽动后管和一簇相关的浅表神经瘤。后侧线神经支配颞上连合管和相关的浅神经瘤，以及躯干和尾鳍上的管和浅神经瘤。应用辣根过氧化物酶的侧线神经的个别分支表明，后侧线神经项目的背侧部分的内侧和尾侧核，而前侧线分支项目的腹侧部分。还观察到向octaval柱的大细胞和下降核的侧线投射。向颗粒隆起的投射也是分离的，使得前侧线神经投射到前外侧部分，后侧线神经投射到尾侧部分。因此，似乎有一个地形组织的侧线投影到外侧柱和隆起的颗粒。然而，这种地形似乎并不精确，因为前侧线神经的分支的投影广泛重叠，后侧线神经的分支也是如此。
The lateral-line system of the goldfish, Carassius auratus, is described from the receptor distribution on the body surface to the termination of the primary afferents within the octavolateralis column. Goldfish have a continuous lateral-line canal system which consists of supraorbital, infraorbital, operculomandibular and supratemporal commissural canals on the head and a trunk canal extending the length of the trunk. There is a single neuromast between each 2 canal pores. The total number of canal neuromasts on the head ranges from 74 to 100. On the body the total number of canal neuromasts ranges from 52 to 60. Associated with each canal are populations of superficial neuromasts. There are approximately 1,000 superficial neuromasts on the head which are arranged in clusters or rows oriented perpendicular to the long axis of the associated canal. On the body there are 3-9 superficial neuromasts on each scale. Further, there is a total of 1,000 superficial neuromasts arranged in horizontal lines between the fin rays of the caudal fin. The neuromasts are innervated by branches of four lateral-line nerves. The dorsal anterior lateral-line nerve innervates the supraorbital and infraorbital canals and associated superficial neuromasts. The ventral anterior lateral-line nerve innervates the operculomandibular canal and associated superficial neuromasts, as well as superficial neuromasts on the operculum. The middle lateral-line nerve innervates the postotic canal and a cluster of associated superficial neuromasts. The posterior lateral-line nerve innervates the supratemporal commissural canal and associated superficial neuromasts, as well as the canal and superficial neuromasts on the trunk and caudal fin. Application of horseradish peroxidase to the individual branches of the lateral-line nerves shows that the posterior lateral-line nerve projects to the dorsal portion of the medial and caudal nuclei, whereas the anterior lateral-line branches project to the ventral portion. Lateral-line projections to the magnocellular and descending nuclei of the octaval column were also observed. The projections to the eminentia granularis are also segregated such that the anterior lateral-line nerves project to the anterolateral portion and the posterior lateral-line nerve to the caudal portion. Thus, there appears to be a topographic organization of the lateral-line projections to the lateralis column and eminentia granularis. However, this topography does not appear to be precise as the projections of the branches of the anterior lateral-line nerves overlap extensively, as do the branches of the posterior lateral-line nerves.