Department of Anatomy, Faculty of Medicine, Islamic University of Gaza, Gaza, Palestine.
Anat Rec (Hoboken). 2012 Dec;295(12):2191-204. doi: 10.1002/ar.22570. Epub 2012 Aug 29.
Neurons in the cuneate nucleus of the camel brain stem were studied by Golgi method. Six types of neurons were identified based on soma size and shape, density of dendritic trees, morphology and distribution of spines, and appendages. Type I neurons had large spherical somata with somatic appendages. Dendritic appendages were predominant on proximal dendrites with terminal flower-like appendages. Type II neurons had medium to large soma. Appendages and spines were found for the soma as well as along dendrites of different orders. Axons with local branches were seen for these neurons. Type III neurons were small to medium spheroidal or triangulated with large number of spines and appendages on all parts of neurons including soma, dendrites, and initial axonal segments. Axons of these neurons branch profusely and formed rich local axonal arborizations. Type IV medium-size neurons have bipolar, round, or fusiform soma with somatic spines. Their dendrites were sparsely branching with spines and terminal side branches. Type V neurons were spheroid or triangular with small soma with somatic appendages. Their dendrites were sparsely branching and terminate as thin spiny side branches. Type VI neurons were small-size unipolar, round, or fusiform with some dendritic spines and protrusions. These findings shed some light on the structure of the cuneate nucleus of one of the largest animals (the camel).
采用高尔基染色法对骆驼脑干楔束核神经元进行了研究。根据胞体大小和形状、树突棘密度、形态和分布以及附属物，将神经元分为 6 种类型。Ⅰ型神经元具有大的球形胞体和胞体附属物。近端树突上的树突附属物为主，末端呈花状。Ⅱ型神经元具有中到大的胞体。胞体和不同顺序的树突上都有附属物和棘。这些神经元的轴突具有局部分支。Ⅲ型神经元为小到中等大小的球形或三角形，神经元的所有部分（包括胞体、树突和初始轴突段）都有大量的棘和附属物。这些神经元的轴突大量分支并形成丰富的局部轴突树突。Ⅳ型中等大小神经元具有双极、圆形或梭形胞体和胞体棘。它们的树突分支稀疏，有棘和末端侧支。Ⅴ型神经元为小球形或三角形，胞体小，有胞体附属物。它们的树突分支稀疏，末端为细棘侧支。Ⅵ型神经元为小的单极、圆形或梭形，有一些树突棘和突起。这些发现为最大的动物之一（骆驼）的楔束核结构提供了一些线索。
