A theoretical and practical treatise on midwifery : including the diseases of pregnancy and parturition and the attentions required by the child from birth to the period of weaning . ° from thehorizon, and that the point of the coccyx is found, as a mean, from a half tothree-quarters of an inch higher than the summit of the pubic arch; and, there-fore, the coccy-pubal line is a little oblique from above downwards, and from be-hind forwards. The lower extremity of the axis of this plane of the inferiorstrait would cut the coccy-pubic diameter at right angles, and terminate aboveat the sacro-ver
A theoretical and practical treatise on midwifery : including the diseases of pregnancy and parturition and the attentions required by the child from birth to the period of weaning . ° from thehorizon, and that the point of the coccyx is found, as a mean, from a half tothree-quarters of an inch higher than the summit of the pubic arch; and, there-fore, the coccy-pubal line is a little oblique from above downwards, and from be-hind forwards. The lower extremity of the axis of this plane of the inferiorstrait would cut the coccy-pubic diameter at right angles, and terminate aboveat the sacro-vertebral angle. As a further result of his labors, he has found that,in five hundred well-formed persons, of different statures, four hundred and fifty-four have the point of the coccyx more elevated than the inferior portion of thesymphysis; in twenty-six it was lower, and in twenty individuals both pointswere on the same level. M. Velpeau remarks, as we think with some reason,that, at the moment of delivery,—the only time, after all, when it is requisite toform an idea of the direction of this plane—the point of the coccyx, being pushed 48 FEMALE ORGANS OF GENERATION, ft. c d. The horizontal line,ferior strait (during labor),ferior strait. c e. The plane of the in-a b. The axis of the in- downwards and backwards by tbe passage of the bead, is at least on a level with, if not lower than the inferior partof tbe symphysis. The assertion of M. Naegele, there-fore, although true as applied to thefemale not in labor, fails during partu-rition j and it must be admitted that theplane of the inferior strait is then ob-lique from below upwards, and from be-hind forwards. The axis of this strait is representedby a line (a 5, Fig. 8) directed fromabove downwards, and from behind for-wards, which, starting from the firstpiece of the sacrum, falls at a rightangle upon the middle of the bis-ischi-atic space. The remarks made upon thevariations in the direction of the plane, apply with eq
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Keywords: ., boo, bookcentury1800, booksubjectmidwifery, booksubjectobstetrics
