Lennartsson B
Acta Odontol Scand. 1979;37(6):329-33. doi: 10.3109/00016357909004704.
The occurrence of muscle spindles in the anterior digastric muscle in man was investigated and the fibre calibre spectrum of the corresponding nerve was determined. After removal at autopsy from five individuals of both sexes (aged 23--73), the muscles were stained with Weigert's iron hematoxylin-van Gieson stain and the nerves according to the Alzheimer - Mann - Häggqvist method. Altogether 12 spindles were found in five out of ten muscles. Only muscles from one individual were devoid of spindles. This sparsity or absence was supported by analyses of fibre calibre spectra. The small number of spindles and the fact that they do not occur in all muscles or in all individuals, suggest that they are not an essential source of sensory information.
对人体二腹肌前腹肌肉纺锤体的出现情况进行了研究，并测定了相应神经的纤维直径谱。在对5名年龄在23 - 73岁的男女个体进行尸检取出肌肉后，用魏格特铁苏木精 - 凡吉森染色法对肌肉进行染色，并用阿尔茨海默 - 曼 - 哈格奎斯特法对神经进行染色。在10块肌肉中的5块中总共发现了12个纺锤体。只有一名个体的肌肉没有纺锤体。纤维直径谱分析证实了这种稀少或缺失的情况。纺锤体数量少，且并非在所有肌肉或所有个体中都出现，这表明它们并非感觉信息的重要来源。
