Zhang Y L, Tan C K, Wong W C
Department of Anatomy, National University of Singapore, Kent Ridge.
J Anat. 1994 Apr;184 ( Pt 2)(Pt 2):251-60.
The results of light and electron microscope studies of the ciliary ganglion of 5 monkeys (Macaca fascicularis) are described. The ganglion, measuring about 2 mm in length, was consistently observed to be attached to the nerve supplying the inferior oblique muscle at its origin from the oculomotor nerve. A very fine branch was found to connect the nasociliary nerve to the ganglion. The number of neurons varied from 2824 to 3545 after applying Abercrombie's (1946) correction. The mean of the maximum diameter was 43.1 microns (S.D. = 8.0), that of the minimum diameter was 30.5 microns (S.D. = 5.4); the mean of the average diameters was 36.8 microns (S.D. = 5.5) and that of the soma ratios of the maximum to minimum diameters was 1.4 (S.D. = 0.3). The frequency distributions of the maximum diameter, the minimum diameter, the average diameter and the soma ratio were all unimodal. On light microscopy, the Nissl granules in the neurons were prominent and randomly distributed in the cytoplasm. Under the electron microscope, the rough endoplasmic reticulum was distributed either peripherally, perinuclearly or randomly in the cytoplasm of the neuron. Most of the dendrites were short protrusions from the cell body; occasionally such dendritic protrusions were electron dense. Most of the synapses encountered were axodendritic; a few were axosomatic. Synaptic complexes were frequently observed. The axon terminals usually contained a mixture of both round, measuring 30-50 nm in diameter, and flattened vesicles. Tilt analyses showed that the flattened vesicles which measured 20 nm by 50 nm were either discoid or cylindrical in shape. Large dense-cored vesicles measuring 80-100 nm, with core diameters of between 40 and 60 nm, were frequently present.
描述了对5只猕猴（食蟹猴）睫状神经节进行光镜和电镜研究的结果。该神经节长度约为2mm，始终观察到它在动眼神经发出处与支配下斜肌的神经相连。发现一条非常细的分支将鼻睫神经与神经节相连。应用阿伯克龙比（1946年）校正后，神经元数量在2824至3545个之间。最大直径的平均值为43.1微米（标准差=8.0），最小直径的平均值为30.5微米（标准差=5.4）；平均直径的平均值为36.8微米（标准差=5.5），最大直径与最小直径的体细胞比率平均值为1.4（标准差=0.3）。最大直径、最小直径、平均直径和体细胞比率的频率分布均为单峰。在光镜下，神经元中的尼氏体颗粒突出，随机分布在细胞质中。在电子显微镜下，粗面内质网分布在神经元细胞质的周边、核周或随机分布。大多数树突是从细胞体伸出的短突起；偶尔这种树突突起电子密度较高。遇到的大多数突触是轴突-树突型的；少数是轴突-体壁型的。经常观察到突触复合体。轴突终末通常含有直径为30-50nm的圆形小泡和平扁小泡的混合物。倾斜分析表明，直径为20nm×50nm的扁平小泡呈盘状或圆柱形。经常出现直径为80-100nm、核心直径在40至60nm之间的大的有致密核心的小泡。
