. A study of the causes underlying the origin of human monsters : third contribution to the study of the pathology of human embryos . h reticular inagnia within which notrace of an embryo can be found, although the entire specimenwas stained and cut into serial sections. The chorion andvilli are apparently normal, containing blood-vessels from theembryo. No. i.] ORIGIN OF HUMAN MONSTERS. 221 No. 195. Ovum, 30 x 30 x 30 mm. Dr. D. S. Lamb, Washington. No embryo could be found, although the entire ovum wascut into sections. The specimen is well covered with villiand contains some reticular magma
. A study of the causes underlying the origin of human monsters : third contribution to the study of the pathology of human embryos . h reticular inagnia within which notrace of an embryo can be found, although the entire specimenwas stained and cut into serial sections. The chorion andvilli are apparently normal, containing blood-vessels from theembryo. No. i.] ORIGIN OF HUMAN MONSTERS. 221 No. 195. Ovum, 30 x 30 x 30 mm. Dr. D. S. Lamb, Washington. No embryo could be found, although the entire ovum wascut into sections. The specimen is well covered with villiand contains some reticular magma. The mesoderm of thechorion and villi appears normal and is rich in blood-vesselsfilled with embryos blood. No. 196. Tubal pregnancy; embryo, mm. long. Professor Brodel, Baltimore. The specimen, hardened in formalin, contained two sus-picious bodies which were both cut into serial sections. Oneof these proved to be the embryo greatly deformed, repre-senting a stage about three weeks old. The tissues of theembryo are quite homogeneous, only the central nervous sys-tem being recognizable. One eye and a large blood-vessel can. Fig. 196.—Tube cut open, showing the embryo. From a sketch by Pro-fessor Brodel. still be faintly outlined. At points the amnion and umbilicalvesicle are blended completely with the chorion. The outside of the chorion has attached to it a few longand thick villi which do not branch. The chorion and thesevilli are covered with a layer of syncytium of unequal thick- 222 MALL. [Vol. XIX. ness, which frequently invades the mesoderm. The wholechorion is embedded in a large mass of mothers blood. The most remarkable part of this specimen is found withinthe blood-vessels of the chorion. They are gorged with nu-cleated blood corpuscles filled with a pigment of the samecolor as that of the surrounding mothers blood. It appearsas if the syncytium, in destroying the mesoderm of the chorionand the mothers blood, at the same time made it possiblefor the blood of t
Size: 1447px × 1728px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectcon, booksubjectfetus
