. An American text-book of obstetrics. For practitioners and students. ies, 941—Methods, 942—Indications for theOperation, 942—Contra-indications to Version, 943—Dan-gers of Version, 943. 1. External Version .... 944 2. Bipolar Version 946 3. Internal Version 951 HI. Celiotomy for Sepsis in the Child-bearing Period (Hirst) 968Index 977 * » Symphysiotomy (pp. 905-917) contributed by Dr. Jewett. AN AMERICAN TEXT-BOOK OF OBSTETRICS. AN AMERICAN TEXT-BOOK OF OBSTETRICS. I. THE GENERATIVE ORGANS. I. Anatomy of the Pelvis. Four bones—the two ossa innominata, the sacrum, and the coccyx—takepart in th
. An American text-book of obstetrics. For practitioners and students. ies, 941—Methods, 942—Indications for theOperation, 942—Contra-indications to Version, 943—Dan-gers of Version, 943. 1. External Version .... 944 2. Bipolar Version 946 3. Internal Version 951 HI. Celiotomy for Sepsis in the Child-bearing Period (Hirst) 968Index 977 * » Symphysiotomy (pp. 905-917) contributed by Dr. Jewett. AN AMERICAN TEXT-BOOK OF OBSTETRICS. AN AMERICAN TEXT-BOOK OF OBSTETRICS. I. THE GENERATIVE ORGANS. I. Anatomy of the Pelvis. Four bones—the two ossa innominata, the sacrum, and the coccyx—takepart in the formation of the pelvis; each of these, in turn, is composed of anumber of segments which in early life are distinct and united by interveningcartilage. The pieces comprising the innominate bone—the ilium, the pubis,and the ischium—earliest unite, although the union of the several portions ofthe acetabulum is not complete until from the eighteenth to the twentieth sacral and the coccygeal segments fuse still later, those of the coccyx re-. Fig. 1.—Female pelvis (one-third natural size). maining movable until middle life, while the attachment of this bone with thesacrum occurs late in life. During the usual period of childbearing, therefore,the segments composing the posterior boundary of the pelvis are ununited, and,in the lower or coccygeal part of the wall, are capable of yielding to the demandsof parturition for increased antero-posterior or conjugate pelvic pelvis viewed in its entirety presents an inverted truncated cone (Fig. 1), 2 17 18 AMERICAN TEXT-BOOK OF OBSTETRICS. slightly compressed from before backward, whose base is directed upward andforward, and whose smaller end looks downward and backward. The sacrumand the coccyx occupy a median position behind, and contribute the posteriorwall, the innominate bones expanding laterally and meeting in front to formthe pubic arch and symphysis. The space included withiu these bony w
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
