Identifier: americantextbook00norr (find matches)
Title: An American text-book of obstetrics. For practitioners and students
Year: 1897 (1890s)
Authors: Norris, Richard C. (Richard Cooper), 1863-1937 Dickinson, Robert Latou, 1861-
Subjects: Obstetrics Obstetrics
Publisher: Philadelphia, W. B. Saunders
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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Measuring the external conjugate: the black dots show the points from which the measurements are taken (from a photograph). CONDUCT OF NORMAL LABOR. Plate 26.
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Manual method of measuring the diagonal conjugate: p, promontory: p, b, perineal body dis-placed backward. THE CONDUCT OF XORMAL LABOR. 359 In parous women the pelvic floor and the cervix are examined for injuriesinflicted during previous labors. In all cases the diagonal conjugate and theantero-posterior and bisischial diameters at the outlet should carefully bemeasured and the width and curvature of the sacrum be noted. The method ofmeasuring the diagonal conjugate is shown in Figure 195 and Plate 26. Withthe patient in the lithotomy position, two fingers of the examining hand arepassed into the vagina, and the tip of the second finger is made to rest by itsouter margin against the most prominent part of the sacro-vertebral angle.The point at which the edge of the subpubic ligament cuts the radial borderof the examining hand is marked by a finger-nail with the other hand. Thedistance between the points of contact is the value of the diagonal conjugate.To find the true conjugate the

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