Contributions to Embryology Volume 1

Contributions to Embryology Volume 1

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...and in one of them the remnants of the ovum were found. It is about 4 mm. in diameter, composed of small fibrous villi surrounded by trophoblast and blood. Some of the villi have been invaded by leucocytes. No. 307. (Dr. H. C. Coe, New York.) Pathological embryo, 20 mm. long. One ovary and hemorrhagic ovum, 40 mm. in diameter, and a distorted embryo, 20 mm. long, were received. Sections were made through the tube-cell, chorion, and embryo. The hemorrhagic mass consists of blood through which are scattered long fibrous villi and mucous strands richly laden with round cells. They seem to grade with each other, thus showing all stages of degeneration of the chorion. The embryo is thoroughly dissociated and there are secondary changes in the cartilages, bones, and connective tissues. It must have been strangulated when the villi of the chorion ceased to supply it with nourishment. No. 314. (Dr. R. M. Pearce, Albany, N. Y.) Pathological embryo, CR 24, NL 18 mm. Fia. 2.--Figure of the distended tube of No. 324, with an outline of the ovum surrounded by the blood clot indicated with stipple. X 1/1. Drawn by Brodel. No. 338c. (Prof. C. S. Minot, Boston, Mass.) (Plate 6, fig. 4.) Distorted embryo of fifth week. Normal. No. 342. (Professor Minot, Boston, Mass.) (Plate 5, fig. 2.) Pathological ovum, 30 X 20 X20 mm.; pedicle within, 5X1 mm. The specimen has a very thin fibrous chorion, with traces of blood-vessels, practically without villi. Within is a thickened fibrous amnion, to which the process, the umbilical cord, is attached. The cord is also fibrous, contains remnants of its blood-vessels, and has attached at its free end a curious group of round cells, which probably represents what remains of the embryo. No. 350. (Professor Brodel, more

Product details

  • Paperback | 72 pages
  • 189 x 246 x 4mm | 145g
  • United States
  • English
  • black & white illustrations
  • 123690513X
  • 9781236905130