The principles and practice of obstetrics . Spontaneous Evolution continued. the thorax will distend the perineum more and moreuntil it protrudes from the vulva, followed by the side Fig. Spontaneous Evolution completed. of the abdomen, the right hip, the nates, and the lowerextremities. The whole body being thus extricated, SPONTANEOUS EVOLUTION. 3G1 the head will descend into the cavity of the pelvis,and be delivered as usual in pelvic presentations. It is manifest from this account of spontaneous evo-lution, that the slight depth of the anterior part of thepelvis will allow the childs
The principles and practice of obstetrics . Spontaneous Evolution continued. the thorax will distend the perineum more and moreuntil it protrudes from the vulva, followed by the side Fig. Spontaneous Evolution completed. of the abdomen, the right hip, the nates, and the lowerextremities. The whole body being thus extricated, SPONTANEOUS EVOLUTION. 3G1 the head will descend into the cavity of the pelvis,and be delivered as usual in pelvic presentations. It is manifest from this account of spontaneous evo-lution, that the slight depth of the anterior part of thepelvis will allow the childs head to be above the supe-rior strait and the shoulder underneath it, and theroot of the neck then becomes the fulcrum or prop onwhich the body of the child revolves—the whole rightside descending on the posterior part of the sacrumand perineum to the vulva, in the same manner as thetop of the head, in vertex presentations, descends alongthe posterior surface of the pelvis, revolving upon thebase of the occiput or the tracheal region of the neckin face presentations. Notwithstanding that many excellent practical menhave followed Mr. Douglass in describing this mode ofdelivery, yet it
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Keywords: ., boo, bookcentury1800, booksubjectobstetrics, booksubjectpregnancy
