Identifier: systemri01hirs (find matches)
Title: A system of obstetrics
Year: 1888 (1880s)
Authors: Hirst, Barton Cooke, 1861-1935
Subjects: Obstetrics
Publisher: Philadelphia, Lea brothers & co.
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ost common position in vertex presentations is with theocciput turned behind and to the right side. Naegele says that inevery 100 cases of vertex presentation 70 have the occiput turned infront and to the left side, and 30 have the occiput turned behind andto the right side, and that all other positions are very rare and alto-gether exceptional.1 The Fcetal Ellipse. At the full period of gestation we find the foetus folded in the cavityof the uterus in a very peculiar and characteristic attitude. The headis flexed; the feet are bent up in front of the legs; the legs are strongly 1 Franz Carl Naegele, professor of midwifery at Heidelberg, essay on the Mechanismof Parturition, published in 1818. His son, Herman Franz Naegele, succeeded him inhis chair, and wrote an admirable treatise on obstetrical auscultation in 1838. PRESENTATIONS OF THE VERTEX. 561 flexed on the thighs; and the thighs are applied to the anterior surfaceof the abdomen. The knees are separated from each other, but the
Text Appearing After Image:
Ext. Ob Uteri Ext. Os Uteri Urethra— Liquor Amnii IP . Showing the Position of the Fcetub in utero, from a frozen section after labor had begun (C. Braun). heels lie close together on the back part of the thighs; the arms areplaced on the sides of the thorax ; the forearms arc flexed and thrownVol. I.—36 562 MECHANISM AXD TREATMENT OF LABOR. across the sternum, so as to receive, as it were, the chin between thehands. The foetus, thus folded on itself, constitutes a nearly ovoidmass; the larger extremity, represented by the breech, is turned towardthe fundus of the uterus, while the smaller, formed by the head, isdirected downward. This ovoid mass is called the fcetal ellipse. Itslong diameter is about eleven inches. This ovoid mass occupies the cavity of the uterus, which is also ofa corresponding ovoid shape. The fundus of the uterus at term repre-sents the largest part of the egg. The length of the cavity is abouttwelve and a half inches; the widest transverse diameter, toward t

Note About Images