. An American text-book of obstetrics. For practitioners and students. Fig. 312.—Simple flat pelvis (model in HirstCollection, University of Pennsylvania): c. v.,85 em.; tr., 13i cm.; obi., 12J cm.*. Fig. 313 —The two conjugates of a double promontory(Ribemont-Dessaignes). the diagonal conjugate. If there is a double promontory, as is frequently thecase in this form of pelvis, the conjugate must be measured from the promon-tory nearest to the symphysis, usually the lower (Fig. 313). Influence upon Labor.—From the failure of the presenting part to enterthe pelvis during the last weeks of gestat
. An American text-book of obstetrics. For practitioners and students. Fig. 312.—Simple flat pelvis (model in HirstCollection, University of Pennsylvania): c. v.,85 em.; tr., 13i cm.; obi., 12J cm.*. Fig. 313 —The two conjugates of a double promontory(Ribemont-Dessaignes). the diagonal conjugate. If there is a double promontory, as is frequently thecase in this form of pelvis, the conjugate must be measured from the promon-tory nearest to the symphysis, usually the lower (Fig. 313). Influence upon Labor.—From the failure of the presenting part to enterthe pelvis during the last weeks of gestation there is frequently some degree ofpendulous abdomen, especially in women with abdominal walls relaxed fromprevious pregnancies. The uterus is sometimes broader than common, andis often tilted to one side. The presenting part, if the head, may be looseabove the superior strait, resting on one iliac bone or on the symphysis, or itmay be pressed down firmly upon the brim in a transverse position, to accom-modate its longest diameter to the longest diameter of the pelvic inlet. Mal-presentations are common, as is also prolapse of the cord and of the extrem-ities. The membranes may protrud
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
