The Dublin practice of midwifery / by Henry Maunsell.

  • Henry Maunsell
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The Dublin practice of midwifery / by Henry Maunsell. Source: Wellcome Collection.

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    one of those wliimsical resemblances of which anatomists are so fond, declared to be conical in shape. Little information, however, is to be ac- quired from this description; and a much better idea of the pi^operties of the pelvis will be con- veyed by stating its average or standard measure- ments, which the student can verify by examining the bones for himself. Before proceeding to this statement, we must observe that the entire casie is dinded into two portions by the bony ridge or angle which, divid- ing the body from the ala of the os innominatum, is denominated the ileo-pectineal line. The space above this line is termed the hypogastric cavity, or false pelvis; that below it the true, or lesser pelvis. The hypogastric cavity possesses no bony wall anteriorly, but is bounded laterally and pos- teriorly by the alae of the ilii and the lumbar ver- tebrae. Its dimensions vary much, and are of minor importance to the obstetric student; but the distance from the top of one ilium to the other, at the widest, is, in a standard pelvis, between ten and eleven inches; and that between the two antero-superior spinous processes some- what more than nine inches. We now come to the consideration of the true or lesser pelvis, which, from its forming the un- yielding boundary of the canal through which the matiu'e foetus is to be transmitted, is more closely
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