. Text-book of normal histology: including an account of the development of the tissues and of the organs. areexclusively limited to this partof the ovary, where they occurin all stages of youngest and least maturedGraafian follicles are plentifullyscattered through the outer partof the cortex, where in many ani-mals, as the cat and the rabbit,they form almost a completezone. The most immature fol-licle consists of the ovum sur-rounded by a single layer of flat-tened cells, the progenitors of the membrana granulosa, outside of which lie the cells^ of the generalstroma, without
. Text-book of normal histology: including an account of the development of the tissues and of the organs. areexclusively limited to this partof the ovary, where they occurin all stages of youngest and least maturedGraafian follicles are plentifullyscattered through the outer partof the cortex, where in many ani-mals, as the cat and the rabbit,they form almost a completezone. The most immature fol-licle consists of the ovum sur-rounded by a single layer of flat-tened cells, the progenitors of the membrana granulosa, outside of which lie the cells^ of the generalstroma, without the intervention of a special limiting the immature follicles are others in various stages of moreadvanced development, in which the ovum is embraced by two ormore rows of polygonal cells ; around such ova the stroma is con-centrically disposed, a condition foreshadowing the membrana gran-ulosa and the theca of later stages. The cells which surround theovum by their division give rise to the numerous elements Immg thefollicle; they were originally derived from the germinal epithelium IS. Section of human ovary, including cortex : a,germinal epithelium of free surface; b, tunicaalbuginea; c, peripheral stroma containing im-mature Graafian follicles [d); e, well-advancedfollicle from whose wall membrana granulosahas partially separated ; y, cavity of liquorfolliculi; £■, ovum surrounded by cell-mass con-stituting discus proligerus. 226 NORMAL HISTOLOGY. mm S5vK^5®S^ 01 ^J-}J ^^;^^ili^sC,^:J^-^^-■ M-l ..-■-, ., rv-^;:- c^ 5;^a^ d :^^ k •^.-4^
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiajblipp
