Handbook of obstetric nursing / by Francis W.N. Haultain and J. Haig Ferguson.

Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Handbook of obstetric nursing / by Francis W.N. Haultain and J. Haig Ferguson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    mechanism of labour. cavity, either through the vulva or into the vagina, and thus labour is terminated. With regard to the mechanism of labour, only a few words will be necessary in a book of this nature. As pic- viouslymentioned, in 9o percent, of cases the child pre- sents by the head, and in 99 per cent, of these head cases, the long occipito-frontal diameter of the head occupies the right oblique diameter of the pelvis. The occiput is Fig. 22.—Diagram of vertex positions from below. A, Left occipito-anterior. B, Right oecipito-anterior. C, Right occipito-posterior. D, Left occipito-posterior. that part of the vertex which descends first through the pelvis, and which rotates inwards under the symphysis pubis. It is thus called the denominator, and vertex positions are named according to the situation of the occiput. In by far the majority of cases the occiput lies forwards, opposite the left ilio-pectineal eminence, and