. The elements of Embryology. Embryology. 32 PRELIMINARY ACCOUNT. [chap. brane(a)is-tlie amnion proper,ancl the cavity within it, between it and the embryo, is the cavity of the amnion containing the liquor amnii. The allantois is omitted for the sake of sim- plicity. It will be seen that the amnion a now forms in every direc- tion the termination of the somatopleure ; the peripheral portions . of the somatopleure, the united outer or descending limbs of the folds af in G, D, F, G having been cut adrift, and now forming an independent continuous membrane, the serous membrane, immediately
. The elements of Embryology. Embryology. 32 PRELIMINARY ACCOUNT. [chap. brane(a)is-tlie amnion proper,ancl the cavity within it, between it and the embryo, is the cavity of the amnion containing the liquor amnii. The allantois is omitted for the sake of sim- plicity. It will be seen that the amnion a now forms in every direc- tion the termination of the somatopleure ; the peripheral portions . of the somatopleure, the united outer or descending limbs of the folds af in G, D, F, G having been cut adrift, and now forming an independent continuous membrane, the serous membrane, immediately underneath the vitelline membrane. In / the splanchnopleure is seen converging to complete the closure of the alimentary canal a' even at the stalk (elsewhere the canal has of course long been closed in), and then spreading outwards as before over the yolk. The point at which it unites with the somatopleure, marking the extreme limit of the cleavage of the mesoblast, is now much nearer the lower pole of the diminished yolk. TP. 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 Foster, M. (Michael), Sir, 1836-1907. London, MacMillan
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Keywords: ., bookautho, bookcentury1800, bookdecade1880, booksubjectembryology
