. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 88 COMPARATIVE PHYSIOLOGY. so that the removal of one involves that of more or less of the others. The connection of parts is far closer than that described. Fig. 90.—Diagram illnstrating the decidua, placenta, etc. (after LiSgeois). e, embryo; i, intestme: p, pedicle of the umbilical vesicle; u, v, umbilical vesicle; a, amnion; cA, chorion; v. t, vascular tufts of the chorion, constituting the fcetal portion of the placenta; , maternal portion of the placent
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 88 COMPARATIVE PHYSIOLOGY. so that the removal of one involves that of more or less of the others. The connection of parts is far closer than that described. Fig. 90.—Diagram illnstrating the decidua, placenta, etc. (after LiSgeois). e, embryo; i, intestme: p, pedicle of the umbilical vesicle; u, v, umbilical vesicle; a, amnion; cA, chorion; v. t, vascular tufts of the chorion, constituting the fcetal portion of the placenta; , maternal portion of the placenta; rf. b, decidua vera; (2. r, de- cidua refleza; al, allantois. for the rabbit; and, even with the preparation that Nature makes for the final separation of the placenta from both fcetus and mother, this event does not take place without some rupture of vessels and consequent hasmorrhage. It is difficult to conceive of the great vascularity of the human placenta without an actual examination of this structure itself, which can be done after being cast off to great advan- tage when floating in water; by which simple method also the thinness and other characteristics of the membranes can be well made out. The great vessels conveying the foetal blood to and from the. 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 Mills, Wesley, 1847-1915. New York, Appleton
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