First lines of the practice of midwifery: to which are added remarks on the forensic evidence requisite in cases of foeticide and infanticide / By Charles Severn.

  • Severn, Charles.
Date:
1831
Catalogue details

Licence: Public Domain Mark

Credit: First lines of the practice of midwifery: to which are added remarks on the forensic evidence requisite in cases of foeticide and infanticide / By Charles Severn. Source: Wellcome Collection.

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    perior and anterior division of the os innominatum, is united with its fellow anteriorly, and the space beneath the articulation and the rami is called the arch of the pubis. The sacrum (the rump bone) forms the superior and posterior boundary of the pelvis; it is concave internally, convex externally, and its figure triangular; on the base of the triangle rests the last lumbar vertebra, and the os coc- cygis is articulated with its apex. There is, at the superior and anterior part of the bone, a projection termed the pro- montory of the sacrum. The os coccygis (the knuckle bone) is divided gene- rally into two or three portions, and forms the extremity of the spine; it is curved forwards, and articulated with the sacrum by an intermediate fibro-cartilaginous structure, ad- mitting of some degree of motion, by which the long axis of the outlet, which is in the transverse diameter, is consi- derably increased. CHAP. II. LIGAMENTS AND JOINTS OF THE PELVIS. There are many ligaments uniting the bones of the pelvis together, some of which, being unconnected with the prac- tice of midwifery, do not properly come under our conside- ration. Of these, Poupart's and Gimbernat's, attached to the ilium and os pubis, are in reality nothing more than the tendinous insertions of the abdominal muscles. The obturator ligament, filling up the obturator foramen, is perforated by the artery, vein, and nerve, and when the latter is pressed on during labour, cramp of the muscles which it supplies is produced. The sacro-sciatic ligaments are situated at the sides and