Control of locomotion in marine mollusc Clione limacina. VII Reexamination of type 12 interneurons.
Control of locomotion in marine mollusc Clione limacina. VII Reexamination of type 12 interneurons.
复制标题
海洋软体动物 Clione limacina 运动的控制。
DOI：
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发表时间：
1989
影响因子：
2
通讯作者：
G. A. Pavlova
中科院分区：
文献类型：
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作者：
Arshavsky YuI;G. Orlovsky;Panchin YuV;G. A. Pavlova
在之前对翼足类软体动物 Clione limacina 的分离足神经节进行的研究中，我们描述了神经元元件（12 型神经元）的活动，并研究了它在运动节律产生中的作用（Arshavasky 等人，1985d）。正如我们随后了解到的，该活动是从穿过足神经节的神经元轴突记录的，而神经元胞体位于胸膜神经节，因此在足神经节隔离过程中被切断。因此，有必要通过使用较少的中枢神经系统准备来重新研究该神经元的特性及其在运动节律产生中的作用。得到以下结果。 (1) 每个胸膜神经节仅包含一个这种类型的神经元，因此该细胞被视为已识别的神经元。神经元的轴突通过胸膜踏板连接到达踏板神经节。然后轴突分成两个分支，终止于两个足神经节的外侧区域。来自左、右胸膜神经节的神经元 12 彼此之间没有直接连接；它们在运动周期中的同步操作由公共输入决定。 (2)完整的神经元12和没有胞体的神经元的电特性大致相同。在任何一种情况下，神经元都会产生“平台”电位，即它可能会在去极化状态下持续很长时间。平台电位可由去极化电流脉冲或 EPSP 引起，并由超极化电流或 IPSP 终止。在平台电位产生期间，神经元输入电阻下降约两倍。（摘要截断为 250 字）
In previous work carried out on the isolated pedal ganglia of the pteropod mollusc Clione limacina we described the activity of a neuronal element (type 12 neuron) and looked into its role in the locomotor rhythm generation (Arshavasky et al. 1985d). As we learned subsequently, the activity was recorded from the neuron axon passing in the pedal ganglia, while the neuron soma was located in the pleural ganglia and consequently was cut off in the course of pedal ganglia isolation. It thus became necessary to reinvestigate the properties of this neuron and its role in locomotory rhythm generation by using less reduced preparation of the central nervous system. The following results were obtained. (1) Each pleural ganglion contains only one neuron of this type, this cell is thus to be considered as the identified neuron. The neuron's axon reaches into the pedal ganglion via the pleuro-pedal connective. Then the axon divides into two branches terminating in the lateral regions of both pedal ganglia. The neurons 12 from the left and right pleural ganglia have no direct connections with one another; their synchronous operation in the locomotor cycle is determined by common inputs. (2) The electrical properties of an intact neuron 12 and one without a soma are about the same. In either case the neuron generates "plateau" potentials, i.e., it may persist for a long time in the depolarized state. Plateau potentials can be induced by a depolarizing current pulse or by an EPSP, and terminated by hyperpolarizing current or by an IPSP. The neuron input resistance drops about twofold during generation of the plateau potential.(ABSTRACT TRUNCATED AT 250 WORDS)
巴西海兔游泳：血清素的行为和细胞效应。
影响因子：
2.5
作者：
Parsons,DW;Pinsker,HM
通讯作者：
Pinsker,HM
通过选择性失活已识别的神经元来确定龙虾口胃神经节模式生成的机制。
影响因子：
2.5
作者：
Selverston,AI;Miller,JP
通讯作者：
Miller,JP
通过选择性失活已识别的神经元来确定龙虾口胃神经节模式生成的机制。
影响因子：
2.5
作者：
Miller,JP;Selverston,AI
通讯作者：
Selverston,AI