FINE STRUCTURE OF EYE OF MOLLUSC PECTEN MAXIMUS
FINE STRUCTURE OF EYE OF MOLLUSC PECTEN MAXIMUS
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DOI：
10.1007/bf00339290
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发表时间：
1967-01-01
期刊：
影响因子：
--
通讯作者：
LAND, MF
中科院分区：
文献类型：
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作者：
BARBER, VC;EVANS, EM;LAND, MF
大果蝇视网膜分为两个感光层，形成远端视网膜和近端视网膜。这些层的细胞有不同的电生理反应，远端细胞给出初级的“关”反应，近端细胞给出“开”反应。远端视网膜细胞的受体表面是由扁平的纤毛外膜产生的片层形成的。纤毛为基体，基足，无根系，内丝含量为9+0。每个细胞从其远端长出一个轴突，这个过程向上到达基底膜，基底膜位于细胞晶状体下方，在其下方穿过，并与远端视神经相连。近端视网膜细胞的感受器部分由大量微绒毛组成。每个细胞也有一个或两个纤毛，内丝可能是9+0，没有根部。近端细胞形成轴突，形成近端视神经。近端视网膜下方是反射层，即银质层，下方是色素细胞层。
The retina ofPecten maximusis divided into two light sensitive layers forming the distal and proximal retinae. The cells from these layers have different electrophysiological responses, the distal cells giving primary “off” responses, and the proximal cells giving “on” responses. The receptor surfaces of the distal retinal cells are formed from lamellae produced by the outer membranes of flattened cilia. These cilia have a basal body, basal foot, no root system and a 9 + 0 internal filament content. Each cell gives rise to an axon from its distal side, and this process goes up to the basement membrane, which is present below the cellular lens, passes along beneath it, and joins the distal optic nerve. The receptor part of the proximal retinal cells is formed from a vast array of microvilli. Each of these cells also bears one or two cilia with a probable 9 + 0 internal filament complement and no roots. The proximal cells give rise to axons, forming the proximal optic nerve. Below the proximal retina is a reflecting layer, the argentea, and below this is a pigment cell layer.