视网膜杆体光感受器是一类高分化的视细胞,它是由对光敏感的外段、内段和含有细胞核的胞体三部分组成。而内外段之间有一连接纤毛相连,外段含有一堆分开的膜性盘,后者在纤毛区发育或为胞浆膜的外突。小盘向光感受器顶部移行并发生周期性的脱落与再生,小盘的脱落与再生受光周期性的控制。视紫红质是视杼细胞外段的主要膜蛋白质。然而,视杆细胞的外段也含有几种可溶性蛋白质和酶,其中一种可溶性蛋白质被 Retinal rod Photoreceptors are a class of highly differentiated visual cells that are composed of three segments, the outer segment that is light sensitive, the inner segment, and the cell body that contains the nucleus. The inner and outer segments have a connected cilium between the outer segment contains a pile of separate membranous disc, the latter in the cilia development or cytoplasmic membrane of the sudden. Small cap to the top of the photoreceptor migration and the occurrence of cyclical loss and regeneration, the disk off and regeneration of the cyclical control by light. Rhodopsin is the major membrane protein of the extracellular compartment of the retina. However, the outer rod of the rod also contains several soluble proteins and enzymes, one of which is soluble