. The Anatomical record 1922-1923. Anatomy. 3 4 to 4 Stages illustrating secondary chorionic fusion between dizygotie Figs. 1 tubal embryos. Fig. 1, Young's specimen; Pulcher's specimen; fig. 4, Costa's specimen. fig. 2, Mall's specimen; fig. 3, mentally represent a former double chorionic wall which had thinned and degenerated until it was no longer recognizable as such to the investigator.* During the growth of these ova, the nutritional mechanism necessarily became progressively incompetent. Under these conditions, the embryos should be underdeveloped; in accordance with this expectation, w
. The Anatomical record 1922-1923. Anatomy. 3 4 to 4 Stages illustrating secondary chorionic fusion between dizygotie Figs. 1 tubal embryos. Fig. 1, Young's specimen; Pulcher's specimen; fig. 4, Costa's specimen. fig. 2, Mall's specimen; fig. 3, mentally represent a former double chorionic wall which had thinned and degenerated until it was no longer recognizable as such to the investigator.* During the growth of these ova, the nutritional mechanism necessarily became progressively incompetent. Under these conditions, the embryos should be underdeveloped; in accordance with this expectation, we find the * Possibly the amnion was a constituent as well; each chamber is said to be lined with a 'smooth glistening membrane.' As this was the author's inaugural thesis, he presumably studied the specimen with care, although he failed properly • to interpret the septum or the significance of the insertion of both umbilical cords in 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 American Association of Anatomists; American Society of Zoologists. Philadelphia [etc. ] : The Wistar Institute of Anatomy and Biology [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
