Kondo M, Kabayama C, Nishida S
Department of Ophthalmology, Aichi Medical University, Japan.
Nippon Ganka Gakkai Zasshi. 1992 Jan;96(1):51-6.
The author observed freeze fracture and deep etch replica of monkey ciliary muscle in order to study it's fine three dimensional structure. A three dimensional structure of the ciliary muscle cell and the relationship between the adjoining cells were elucidated. A lot of myofilaments which were meshy in shape were observed in the cytoplasm of ciliary muscle cells, and adhered to just beneath the cell membrane, nucleus membrane and limiting membrane of mitochondria directly. The arrangement direction of myofilaments was either parallel or oblique to the longitudinal axis of the cell, and then myofilaments formed dense bodies together with 10 nm filaments in some places. Myofilaments and 10 nm filaments also formed dense plaques together just beneath the cell membrane. Myofilaments and 10 nm filaments suggested to concern the cytoskeleton and the functional characteristics of the ciliary muscle cell.
作者观察了猴睫状肌的冷冻断裂和深度蚀刻复制品，以研究其精细的三维结构。阐明了睫状肌细胞的三维结构以及相邻细胞之间的关系。在睫状肌细胞的细胞质中观察到许多呈网状的肌丝，它们直接附着在细胞膜、核膜和线粒体的界膜下方。肌丝的排列方向与细胞的纵轴平行或倾斜，然后在某些地方肌丝与10纳米细丝一起形成致密体。肌丝和10纳米细丝也在细胞膜下方一起形成致密斑。肌丝和10纳米细丝提示与睫状肌细胞的细胞骨架和功能特性有关。
