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 . First position of the right shoulder withthe arm hanging down. The same position during the descent. in the excavation. But the same difficulty is here met with as in the face pres-entations (see Positions of the Face); that is, the body being thus placed trans-versely, it is impossible for the shoulder to reach the lower strait unless the headengages simultaneously with it in the excavation; or, indeed, unless th
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 . First position of the right shoulder withthe arm hanging down. The same position during the descent. in the excavation. But the same difficulty is here met with as in the face pres-entations (see Positions of the Face); that is, the body being thus placed trans-versely, it is impossible for the shoulder to reach the lower strait unless the headengages simultaneously with it in the excavation; or, indeed, unless the neckshould be long enough to subtend the height of the lateral wall of the latter,which we have already seen is impossible (see Mechanism of Face Positions).The descent of the shoulder is therefore limited to the length of the neck. c. A movement of rotation next occurs, by which the long axis of the child,that was originally placed transversely, is brought very nearly into an antero-posterior direction, so that its cephalic extremity is placed above the horizontalbranch of the pubis close to the spine of that bone, and the breech above, orrather in front of the sacro-iliac
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Keywords: ., boo, bookcentury1800, booksubjectmidwifery, booksubjectobstetrics
