. The comparative anatomy of the domesticated animals. Veterinary anatomy. FECUNDATED EGG, SHOW- ING EOEMATION OF AM- NION AND ALLANTOIS. cf. Umbilical vesicle; 6, Amniotic cavity ; c, Al- lantois. Fig. FECUNDATED EGG OF FOWL WITH ALLANTOIS NEARLY COMPLETED. a, Inner lamina of am- niotic fold; 6, Outer lamina of the same; c. Point where the amnio- 3. The Allantois. (Fig. 423.) The allantois is a membrane that covers the inner face of the chorion, and is folded around the insertion of the umbilical cord, to spread itself over the whole external surface of the amnion. It thus transforms ti
. The comparative anatomy of the domesticated animals. Veterinary anatomy. FECUNDATED EGG, SHOW- ING EOEMATION OF AM- NION AND ALLANTOIS. cf. Umbilical vesicle; 6, Amniotic cavity ; c, Al- lantois. Fig. FECUNDATED EGG OF FOWL WITH ALLANTOIS NEARLY COMPLETED. a, Inner lamina of am- niotic fold; 6, Outer lamina of the same; c. Point where the amnio- 3. The Allantois. (Fig. 423.) The allantois is a membrane that covers the inner face of the chorion, and is folded around the insertion of the umbilical cord, to spread itself over the whole external surface of the amnion. It thus transforms tic folds come in contact the chorial sac into a kind of serous cavity, in which with each other; the the amnios is inclosed as a viscus. tritinr between ""The" '^^^ *'"*'"'' °^ o-mniotic lamina, is attached to the inner and outer laminffi amnios " SO slightly that dissection, and especially of the amniotic fold. insufflation, easily destroys its adhesion. "When the second of these measures is resorted to, in order to separate the two membranes, the allantoid siu'face assumes a bosselated. 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 Chauveau, A. (Auguste), 1827-1917; Arloing, S. (Saturnin), 1846-1911; Fleming, George, 1833-1901. tr. New York, D. Appleton and Company
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