Scheuermann D W, Stach W, Timmermans J P
Acta Anat (Basel). 1987;129(2):96-104. doi: 10.1159/000146383.
Scanning electron microscopy of whole-mount preparations of the tela submucosa in the porcine small intestine, examined after trypsin digestion, fixation and HCl hydrolysis, visualized a clear differentiation of the submucosal plexuses, i.e., the plexus submucosus internus (Meissner) and the plexus submucosus externus (Schabadasch). The distinctive features refer to the topography, number, size and shape of the ganglia and the number and diameter of the nerve strands. The plexus of Meissner is closely apposed to the external surface of the lamina muscularis mucosae by the enveloping connective tissue and by connecting strands penetrating the lamina muscularis mucosae. Three distinctive subdivisions of connecting strands can be identified. Since the glial cells covering the ganglia and connecting strands have been preserved, neither individual neuronal cells nor axons can be observed.
对猪小肠黏膜下层整装标本进行扫描电子显微镜检查，该标本经胰蛋白酶消化、固定及盐酸水解后，可清晰显示黏膜下神经丛的分化，即内黏膜下神经丛（迈斯纳神经丛）和外黏膜下神经丛（沙巴达施神经丛）。其显著特征涉及神经节的位置、数量、大小和形状以及神经束的数量和直径。迈斯纳神经丛通过包绕的结缔组织以及穿透黏膜肌层的连接束与黏膜肌层的外表面紧密相邻。可识别出连接束的三个不同亚群。由于覆盖神经节和连接束的神经胶质细胞得以保留，因此无法观察到单个神经元细胞或轴突。
