The practice of obstetrics, designed for the use of students and practitioners of medicine . sis ().—This is important in determ-ining the depth of the true pelvis,and in assisting in the estimation ofthe true from the diagonal conjugate. It is measured with a pelvimeter by press-ing one point closely down upon the center of the upper border of the symphysis,and the other point against the center of the subpubic ligament. It can alsobe estimated with the fingers (Fig. 213). 12. External Circumference of the Pelvis.—This is measured with the tape-measure over the middle of the symphysis,
The practice of obstetrics, designed for the use of students and practitioners of medicine . sis ().—This is important in determ-ining the depth of the true pelvis,and in assisting in the estimation ofthe true from the diagonal conjugate. It is measured with a pelvimeter by press-ing one point closely down upon the center of the upper border of the symphysis,and the other point against the center of the subpubic ligament. It can alsobe estimated with the fingers (Fig. 213). 12. External Circumference of the Pelvis.—This is measured with the tape-measure over the middle of the symphysis, just below the iliac crests, and acrossthe middle of the sacrum, and is usually about 35^ inches ( cm.). 13. The True Conjugate Measured Externally.—In thin, non-pregnant women,and in the early months of gestation, the true conjugate may occasionally beestimated directly from without, by placing the palmar surface of the handupon the hypogastrium, and pressing backward until the tips of the fingers reachthe promontory. The hand is then marked over the pubes with a finger-nail.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectobstetrics, bookyear1
