. The anatomical record. Anatomy; Anatomy. The Anatomical Record. 255 alteration may attack any number of the ova in a single uterus, and when marked causes degeneration of the embryo, probably from strangu- lation of the cord. The chorion immediately adjoining the base of the cord appears to be the seat of election for this disease and is often thickened by a fluffy mass of fibro-cystic mesenchyme. The cord may be twisted and knotted by fibrous bands which, closing also around the cysts, produce pedunculated vesicles of various sizes—bizarre shapes that. Fig. 1.—Semidiagrammatic outline of on
. The anatomical record. Anatomy; Anatomy. The Anatomical Record. 255 alteration may attack any number of the ova in a single uterus, and when marked causes degeneration of the embryo, probably from strangu- lation of the cord. The chorion immediately adjoining the base of the cord appears to be the seat of election for this disease and is often thickened by a fluffy mass of fibro-cystic mesenchyme. The cord may be twisted and knotted by fibrous bands which, closing also around the cysts, produce pedunculated vesicles of various sizes—bizarre shapes that. Fig. 1.—Semidiagrammatic outline of one of the pathological embryos within the amnion. The cord is twisted and numerous vesicular tags are attached to it. There is hydramnios; within the outline of the embryo, E, is shown. hang out in the coelom. The amnion is often thickened, rough and smaller than normal. More often, however, there is hydramnios. Fibro- cystic tags project from its outer surface into the exocoelom which con- tains considerable magma. Constrictions may form about the embryo dividing it more or less completely into segments. The embryo is degenerated and friable, and the tissues are invaded by wandering blood cells. The fibro-cystic change just described occurs early in pregnancy. After the death of the embryo the ova quickly degenerate and are not found in later 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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