The physiology and morphology of two types of electrosensory neurons in the weakly electric fishApteronotus leptorhynchus
The physiology and morphology of two types of electrosensory neurons in the weakly electric fishApteronotus leptorhynchus
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弱电鱼Apteronotus leptorhynchus两类电感觉神经元的生理和形态
DOI：
10.1007/bf00604985
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
J. Bastian
中科院分区：
文献类型：
--
作者：
J. Saunders;J. Bastian
摘要以往对裸眼神经电感觉外侧叶的解剖学和生理学研究表明，解剖上确定的基底细胞和非基底锥体细胞对应于生理上确定的E和I细胞。细胞内注射辣根过氧化物酶(HRP)到生理鉴定的E和I细胞证实了这一假说。比较基底锥体细胞和非基底锥体细胞的形态和生理反应。这两种锥体细胞都有广泛的顶端树突，与细胞内平行的纤维网络相互作用。非基底锥体细胞的顶端树突树在细胞的肩尾轴上的分布比基底锥体细胞的要宽。参照这些细胞类型与细胞的平行纤维的相互作用来讨论这种差异。测量了顶端树突分支的密度，并与这些分支到细胞体的距离有关。基底区和非基底区锥体细胞的树突密度分布无明显差异。然而，在两个基底锥体细胞的非典型生理特征和它们的树突密度模式之间存在着一个有趣的相关性。对细胞内侧(壶腹)段的两个细胞进行了分析。就像细胞的三个外侧(结节)区域的锥体细胞一样，这些细胞的生理学似乎与延伸的基底突起的存在有关。然而，壶腹细胞具有与锥体细胞的树突树垂直定向的顶端树突树。
SummaryPrevious anatomical and physiological studies of the gymnotoid electrosensory lateral line lobe (ELLL) suggest that the anatomically identified basilar and non-basilar pyramidal cells correspond to the physiologically defined E and I cells. Intracellular injection of horseradish peroxidase (HRP) into physiologically identified E and I cells confirms this hypothesis. The morphologies and physiological responses of the basilar and non-basilar pyramidal cells were compared. Both types of pyramidal cells have extensive apical dendritic trees that interact with a parallel fiber network in the ELLL. The apical dendritic trees of the non-basilar pyramidal cells have a wider spread along the rostrocaudal axis of the ELLL than those of the basilar pyramidal cells. This difference is discussed in reference to the interaction of these cell types with the parallel fibers of the ELLL. The density of apical dendritic branches was measured and related to the distance of these branches from the cell body. No obvious differences were seen between the dendritic density patterns of basilar and non-basilar pyramidal cells. An interesting correlation, however, exists between the atypical physiological characteristics of two basilar pyramidal cells and their dendritic density patterns. Two cells of the medial (ampullary) segment of the ELLL were analyzed. Like the pyramidal cells of the three lateral (tuberous) regions of the ELLL, the physiology of these cells appears to be related to the presence of an extended basilar process. The ampullary cells, however, have apical dendritic trees that are oriented orthogonally to the dendritic trees of the pyramidal cells.
不可干扰电定位系统的神经关联。
DOI：
10.1126/science.7455709
发表时间：
1981
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Matsubara,JA
通讯作者：
Matsubara,JA