Henkel C K, Brunso-Bechtold J K
Department of Neurobiology and Anatomy, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, North Carolina 27157.
J Comp Neurol. 1991 Nov 8;313(2):259-72. doi: 10.1002/cne.903130206.
The dendritic morphology of cells in the lateral superior olivary nucleus was studied with the Golgi method in adult and postnatal ferrets. The lateral superior olivary nucleus in the adult ferret is a convoluted structure with an M-shape in frontal sections. The major cell type appears to have disk-shaped dendritic trees. Most dendritic trees appear to be approximately orthogonal to the curved medial-lateral axis of the nucleus. Depending on their position in the limb and on the plane of section with respect to the dendritic tree, the disk-shaped cells are either bipolar or radiate in orientation. One subclass of disk-shaped cells has secondary dendritic branches that end as tufts of tendril-like processes. In a second subclass of cells, the dendrites exhibit several orders of dichotomous branching and lack obvious tufts of terminal processes. Marginal cells are observed at the border of the nucleus and have dendrites restricted to the margins of the cell plate. The bipolar orientation of disk-shaped cells orthogonal to the axis of the limbs is already apparent by the time of birth. Transient spines and other appendages are abundant on somata and dendrites during the first postnatal week. By the end of the first postnatal month only distal appendages are found. Tufts of fine tendril-like processes appear at the ends of dendrites between postnatal days 28 and 56.
采用高尔基染色法，对成年和出生后雪貂的外侧上橄榄核中的细胞树突形态进行了研究。成年雪貂的外侧上橄榄核是一种在额状切片中呈M形的卷曲结构。主要细胞类型似乎具有盘状树突。大多数树突似乎与核的弯曲内外侧轴大致正交。根据其在核中的位置以及相对于树突的切片平面，盘状细胞的方向要么是双极的，要么是辐射状的。盘状细胞的一个亚类具有作为卷须状突起簇结束的二级树突分支。在细胞的第二个亚类中，树突表现出多个二分分支顺序，并且缺乏明显的终末突起簇。在核的边界观察到边缘细胞，其树突局限于细胞板的边缘。盘状细胞与核轴正交的双极方向在出生时就已经很明显。在出生后的第一周，胞体和树突上有丰富的瞬态棘突和其他附属物。到出生后第一个月末，只发现远端附属物。在出生后第28天至56天之间，树突末端出现细卷须状突起簇。
