ULTRASTRUCTURE OF RETINAL PIGMENT EPITHELIUM OF HUMAN FETUS
ULTRASTRUCTURE OF RETINAL PIGMENT EPITHELIUM OF HUMAN FETUS
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DOI:
10.1016/s0022-5320(66)80008-4
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发表时间:
1966-01-01
期刊:
影响因子:
--
通讯作者:
WYLLIE, LMA
中科院分区:
文献类型:
--
作者:
BREATHNA.AS;WYLLIE, LMA
The ultrastructure of retinal pigment epithelium was studied in eyes of six human fetuses ranging in age from 8 to 14 weeks. General features of the cytoplasm and plasma membranes of cells at different stages are described, in comparison with the fully developed condition. The mode of development of the pigment granules of retinal cells is essentially similar to that occurring within the epidermal melanocytes. Small, membrane-limited vesicles, probably of Golgi origin, become larger and ovoid in shape, and acquire a system of concentric or folded inner membranes upon which melanin is deposited. The fine structure of the inner membranes of the granules and the manner in which they become melanized is likewise similar.