A textbook of obstetrics . g. 9.—The pelvic canal encroached upon by the soft structures (Veit). The ligamentous structures of the pelvis of greatest interest to the obstetrician are the obturator membranes and the sacrosciaticligaments, which close the pelvic walls, help to impart to thecanal its shape and direction, and, by their situation at either endof the oblique diameters, receive upon their yielding surfaces thegreatest pressure from the extremities of the long diameters ofthe fetal head,—an arrangement much more favorable for the child 28 PREGNANCY. than would be the compression of th


A textbook of obstetrics . g. 9.—The pelvic canal encroached upon by the soft structures (Veit). The ligamentous structures of the pelvis of greatest interest to the obstetrician are the obturator membranes and the sacrosciaticligaments, which close the pelvic walls, help to impart to thecanal its shape and direction, and, by their situation at either endof the oblique diameters, receive upon their yielding surfaces thegreatest pressure from the extremities of the long diameters ofthe fetal head,—an arrangement much more favorable for the child 28 PREGNANCY. than would be the compression of the longest diameters of thehead between bony pelvic walls. The Connective Tissue of the Pelvis.—An intimate knowledgeof the complex arrangement of the pelvic fascia is not essential. Fig. 10.—Female pelvis, showing the form and attachments of the levatores animuscles (Dickinson). to the obstetrician. For his purpose it suffices to remember thatthe arrangement of the pelvic connective tissue may be compared,roughly speaking, to a six-pointed star centering at the uterus,the three arms on each side being disposed as follows : A lateral


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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics