. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 68 THE MEDULLARY GROOVE of about mm., while the corresponding size of the latter two was somewhat less than mm. Notwithstanding the considerable increase in the size of these older ova, due to the continued increase in the size of the extra-embryonic ccelom, the embryos are but. Fig. 39.—The Embryo v. H. of von Spee. The Left Half of theT Chorion has been Removed to show the Embryo. a, Amniotic cavity; b, belly-stalk; ch, chorion; d, yolk-sac; e, extra-embryonic ccelom; ky embryonic d
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 68 THE MEDULLARY GROOVE of about mm., while the corresponding size of the latter two was somewhat less than mm. Notwithstanding the considerable increase in the size of these older ova, due to the continued increase in the size of the extra-embryonic ccelom, the embryos are but. Fig. 39.—The Embryo v. H. of von Spee. The Left Half of theT Chorion has been Removed to show the Embryo. a, Amniotic cavity; b, belly-stalk; ch, chorion; d, yolk-sac; e, extra-embryonic ccelom; ky embryonic disk; 2, chorionic villus.—{vonSpee.) little advanced beyond the stage shown by the Peters embryo. The thickening of the chorionic mesoderm that encloses the amni- otic cavity has increased in size and now forms a pedicle, known as the belly-stalk (Fig. 39, 6), at the extremity of which is the yolk-sac. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
