Lüth H J, Brauer K, Winkelmann E
J Hirnforsch. 1980;21(1):39-51.
On the basis of ultrastructural and ultrahistochemical studies in the dorsal part of lateral geniculate nucleus (d LGN) of albino rat a topistical model of geniculo-cortical relay cell (GCR-cell) afferentiation is proposed. Retinal afferent terminals of type 2a and 2b and their synaptic properties are discussed in connection with slow and fast conducting retinofugal channels. Interneuronal contacts are represented by presynaptic dendritic specializations (P-bouton) and by axonal terminals (F-bouton) (LIEBERMAN and WEBSTER, 1974). These findings suggest that the function of interneurons may be dualistic. Cortical afferents are represented by small terminals with round agranular vesicles. Using the "false" transmitter 5-OH-DA we succeeded in demonstrating degenerating terminals with dense core vesicles. There is evidence that noradrenergic axons originating in the Locus coeruleus may contact with the distal dendritic parts of GCR-neurons.
基于对白化大鼠外侧膝状体核背侧部（dLGN）的超微结构和超组织化学研究，提出了膝状体 - 皮质中继细胞（GCR细胞）传入的局部模型。结合慢传导和快传导视网膜神经纤维通道，讨论了2a型和2b型视网膜传入终末及其突触特性。中间神经元接触由突触前树突特化（P小体）和轴突终末（F小体）表示（利伯曼和韦伯斯特，1974年）。这些发现表明中间神经元的功能可能是二元性的。皮质传入由带有圆形无颗粒小泡的小终末表示。使用“假”递质5 - 羟多巴胺，我们成功地证明了具有致密核心小泡的变性终末。有证据表明，起源于蓝斑的去甲肾上腺素能轴突可能与GCR神经元的远端树突部分接触。
