. The development of the albino rat, Mus norvegicus albinus. Embryology -- Mammals; Rats. Fig. 6 Two ova of the albino rat, interpreted as evidencing retarded or irregular formation of the segmentation cavity. X 200. A, rat No. 90, 6 days, 17 hours, after the beginning of insemination. B, rat No. 90, 6 days, 17 hours, after the beginning of insemination, , parietal or transitory ectoderm: , yolk entoderm; , parietal entoderm. of the surrounding decidua, the crypt and decidua enclosing the adjacent normal vesicle figured in B of figure 24, Part I. The abnormal ovum in question
. The development of the albino rat, Mus norvegicus albinus. Embryology -- Mammals; Rats. Fig. 6 Two ova of the albino rat, interpreted as evidencing retarded or irregular formation of the segmentation cavity. X 200. A, rat No. 90, 6 days, 17 hours, after the beginning of insemination. B, rat No. 90, 6 days, 17 hours, after the beginning of insemination, , parietal or transitory ectoderm: , yolk entoderm; , parietal entoderm. of the surrounding decidua, the crypt and decidua enclosing the adjacent normal vesicle figured in B of figure 24, Part I. The abnormal ovum in question appeared to have proceeded nor- mally in segmentation, its constituent cells being of about the size and structure of the cells of normal ^Tsicles taken the early part of the seventh day after insemination. The cell-mass en- closes a relatively small cavity which may be regarded as an ab- normally placed segmentation cavity, in that its position is not eccentric, and that it is surrounded on all sides by more than one layer of cells. There is thus no differentiation of floor and roof as in normal blastodermic vesicles, and no development of ecto- placental cone and egg-cylinder as in the other ova obtained from. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huber, Gotthelf Carl, 1865-. Philadelphia, Pa
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Keywords: ., boo, bookleafnumber133, bookpublisherphiladelphiapa, bookyear1915
