. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. Fig. 's Ovum between Seventy to Ninety Hours after Impregnation, after E. Van Beneden. {Sal/our.) , cavity of blastodermic vesicle (yelk-sac); EP, epiblast; HY, hypoblast; ZP, mucous envelope (Zonapellucida). derm, as in the chick, is constituted by three layers,—the epiblast, the mesoblast, and the hypoblast. Fig. 17.—Section through the Oval Blastoderm of a Rabbit in the Seventh Day, through the Front Part of the Primitive Streak. (Balfour.) EP, epiblast; M, mesoblast; HY, hypoblast; PR
. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. Fig. 's Ovum between Seventy to Ninety Hours after Impregnation, after E. Van Beneden. {Sal/our.) , cavity of blastodermic vesicle (yelk-sac); EP, epiblast; HY, hypoblast; ZP, mucous envelope (Zonapellucida). derm, as in the chick, is constituted by three layers,—the epiblast, the mesoblast, and the hypoblast. Fig. 17.—Section through the Oval Blastoderm of a Rabbit in the Seventh Day, through the Front Part of the Primitive Streak. (Balfour.) EP, epiblast; M, mesoblast; HY, hypoblast; PR, primitive streak. The subsequent changes in the development of the blastoderm form the subject of Embryology, and for their consideration the reader is referred to text-books on anatomy. III. THE MODIFICATION IN THE FORM OF CELLS. We have seen that originally all the cells formed by cleavage in the egg are absolutely alike. Like the original egg, they are typical cells, consisting of a cell-membrane inclosing finely granular protoplasm, in which a nucleus and nucleolus may be recognized. They only differ 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 Smith, Robert Meade, 1854-. Chicago, A. Eger
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