Ito H, Murakami T
J Comp Neurol. 1984 Oct 10;229(1):80-96. doi: 10.1002/cne.902290107.
Distribution patterns of ganglion cells in the retina were examined in Nissl-stained retinal whole mounts of Sebastiscus and Navodon. The existence of area centralis in the temporal retina in both species suggests binocular vision. In Navodon, another high density area was found in the nasal retina, and a dense band of ganglion cells was observed along the horizontal axis between the two high-density areas. There is an obvious trend for the ganglion cell size to increase as the density decreases. The total number of ganglion cells was estimated to be about 45 X 10(4) in Sebastiscus and 87 X 10(4) in Navodon, whereas the total number of optic nerve fibers was about 35 X 10(4) and 70 X 10(4), respectively. The retinal ganglion cells labeled with HRP were classified into six types according to such morphological characteristics as size, shape, and location of the soma as well as dendritic arborization pattern. Type I cells have a small round or oval soma in the ganglion cell layer and a small dendritic field in the inner plexiform layer. Type II cells are similar to type I cells, but the dendrites arborize more closely to the ganglion cell layer in the innermost region of the inner plexiform layer. Type III cells have a medium-sized round soma in the ganglion cell layer, and the dendrites extend in an extremely wide area in the inner plexiform layer with few branches. Type IV cells have a large soma which is located in the ganglion cell layer. Dendrites emanate from the soma in all directions, branching out several times within a rather small region in the innermost part of the inner plexiform layer. Type V cells have large somata of various shapes, usually dislocated to the inner plexiform or granular layer. The dendrites extend in every direction and occupy an extremely large area in the inner plexiform layer. Type VI cells have the largest somata, which are also dislocated to the inner plexiform or granular layer. Type VI cells have a characteristic triangular or fan-shaped dendritic field. Soma size and the axon diameter are intimately linked, that is, small somata of type I and II cells give off thin axons, and large somata of type V and VI give off thick axons.(ABSTRACT TRUNCATED AT 400 WORDS)
在用尼氏染色法处理的六线鱼和绿鳍马面鲀视网膜整装标本中，研究了神经节细胞在视网膜中的分布模式。这两个物种颞侧视网膜中存在中央凹，表明具有双眼视觉。在绿鳍马面鲀中，在鼻侧视网膜发现了另一个高密度区域，并且在两个高密度区域之间沿水平轴观察到一条神经节细胞密集带。神经节细胞大小有随着密度降低而增大的明显趋势。六线鱼的神经节细胞总数估计约为45×10⁴个，绿鳍马面鲀约为87×10⁴个，而视神经纤维总数分别约为35×10⁴和70×10⁴。用辣根过氧化物酶标记的视网膜神经节细胞根据其形态特征，如胞体大小、形状和位置以及树突分支模式，分为六种类型。I型细胞在神经节细胞层有小的圆形或椭圆形胞体，在内网状层有小的树突野。II型细胞与I型细胞相似，但树突在内网状层最内侧区域更紧密地向神经节细胞层分支。III型细胞在神经节细胞层有中等大小的圆形胞体，树突在内网状层极宽的区域延伸且分支很少。IV型细胞有大的胞体，位于神经节细胞层。树突从胞体向各个方向发出，在内网状层最内侧相当小的区域内多次分支。V型细胞有各种形状的大胞体，通常移位到内网状层或颗粒层。树突向各个方向延伸，在内网状层占据极大区域。VI型细胞有最大的胞体，也移位到内网状层或颗粒层。VI型细胞有特征性的三角形或扇形树突野。胞体大小和轴突直径密切相关，即I型和II型细胞的小胞体发出细轴突，V型和VI型细胞的大胞体发出粗轴突。（摘要截短于400字）
