The principles and practice of midwifery : with some of the diseases of women.
- Milne, Alexander
- Date:
- 1871
Licence: Public Domain Mark
Credit: The principles and practice of midwifery : with some of the diseases of women. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
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![PRINCIPLES & PRACTICE OF MIDWIFERY. CHAPTER I. THE PELVIS. In' order to understand aright the mechanism of par turition, a knowledge of tlie organs and parts concerned in it is indispensable. We Ijegin with the pelvis first, and shall touch only on those points which are of obstetric interest, and which it is necessary should be kno-wn. 1. Position of Pelvis in the Skeleton.—The pelvis is placed at the inferior extremity of the vertebral column, with wliich it articulates at its posterior and upper sui-fiice, forming a striking projection or promontory, termed the sacro-vertebral. This is a part of deep obstetrical importance. Below, the pelvis is supported by the two femoral bones, the acetabula receiving the heads of the.se bones. The pelvis thus forms the lower boundary of the abdominal cavity, affording also room for the bladder and I’ectum, as well as the uterus. This position, as has been often pointed out, is most admi- rably ada]ited and designed, foi- nature is enabled to aid the uterine force of parturition with those other muscular powers which she emjdoys in the expulsion of the contents of the rectum, 2. The pelvis in the iqn’ight position is oblique to the horizon, and not vertical. A perpendicular line n](https://iiif.wellcomecollection.org/image/b24991235_0033.jp2/full/800%2C/0/default.jpg)